In the Goldilocks Zone: Not as basic as the SPOT, and not as advanced as the Pro Touch—meet the Wireless 4-9, our second-gen wireless TENS/EMS device built for multi-area relief with 9 modes, 20 intensity levels, and independent controls.
Situated between the HiDow SPOT and Pro Touch 6-12, the HiDow Wireless 4-9 embodies simplicity, advanced design, and wireless freedom. With support for up to 4 wireless receivers, you can target multiple areas at once. Adjust modes and intensity independently for a session tailored to your needs. The backlit LCD screen keeps things simple, so you can focus on feeling better. Whether you’re dealing with soreness, speeding up recovery, or just need a little extra relief, the Wireless 4-9 gets it done with ease.
Key Features
Wireless Freedom: No cords, no hassle—just easy therapy.
Multi-Area Coverage: Connect up to 4 wireless receivers.
Custom Therapy: 9 modes and 20 intensity levels for full control.
Intuitive Controls: Backlit LCD screen for quick, easy adjustments.
What’s Included
HiDow Wireless 4-9 Device
2 Wireless Receivers
1 Lower Back Electrode Gel Pad & 1 Set of Large Electrode Gel Pads
X-Wires
AC Adapter
USB Charging Cable
User Manual
Technical Specs
Modes: 9
Intensity Levels: 20
Display: LCD Screen
Power Source: Rechargeable Battery
Dimensions & Weight: Remote (4.25” x 2.125” x 0.5”, 20 oz) | Receivers (2.5” diameter, 5 oz)
DEVICE COMPARISON CHART
Device
SPOT
XP MICRO
XPD 12
XPDS 18
XPDS 4 | 24
WIRELESS 4-9
PRO TOUCH
PRICE
$119.00
$299.00
$399.00
$499.00
$649.00
$599.00
$999.00
OUTPUT CHANNELS
1
2
2
2
4
2 INCLUDED
4 MAX
2 INCLUDED
6 MAX
LCD DISPLAY
NO
YES
YES
YES
YES
YES
YES
INTENSITY LEVEL
20
20
20
20
20
20
20
RECHARGABLE BATTERY
YES
YES
YES
YES
YES
YES
YES
MODES
4
8
12
18
24
9
12
INDEPENDENT INTENSITY CONTROL
YES
NO
YES
YES
YES
YES
YES
INDEPENDENT MODE CONTROL
YES
NO
NO
YES
YES
YES
YES
WIRELESS
YES
NO
NO
NO
NO
YES
YES
TOUCH SCREEN
NO
NO
NO
NO
NO
NO
YES
Device
SPOT
PRICE
$119.00
OUTPUT CHANNELS
1
LCD DISPLAY
NO
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
4
INDEPENDENT INTENSITY CONTROL
YES
INDEPENDENT MODE CONTROL
YES
WIRELESS
YES
TOUCH SCREEN
NO
Device
XP MICRO
PRICE
$299.00
OUTPUT CHANNELS
2
LCD DISPLAY
YES
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
8
INDEPENDENT INTENSITY CONTROL
NO
INDEPENDENT MODE CONTROL
NO
WIRELESS
NO
TOUCH SCREEN
NO
Device
XPD 12
PRICE
$399.00
OUTPUT CHANNELS
2
LCD DISPLAY
YES
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
12
INDEPENDENT INTENSITY CONTROL
YES
INDEPENDENT MODE CONTROL
NO
WIRELESS
NO
TOUCH SCREEN
NO
Device
XPDS 18
PRICE
$499.00
OUTPUT CHANNELS
2
LCD DISPLAY
YES
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
18
INDEPENDENT INTENSITY CONTROL
YES
INDEPENDENT MODE CONTROL
YES
WIRELESS
NO
TOUCH SCREEN
NO
Device
XPDS 4 | 24
PRICE
$649.00
OUTPUT CHANNELS
4
LCD DISPLAY
YES
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
24
INDEPENDENT INTENSITY CONTROL
YES
INDEPENDENT MODE CONTROL
YES
WIRELESS
NO
TOUCH SCREEN
NO
Device
WIRELESS 4-9
PRICE
$599.00
OUTPUT CHANNELS
2 INCLUDED
4 MAX
LCD DISPLAY
YES
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
9
INDEPENDENT INTENSITY CONTROL
YES
INDEPENDENT MODE CONTROL
YES
WIRELESS
YES
TOUCH SCREEN
NO
Device
PRO TOUCH
PRICE
$999.00
OUTPUT CHANNELS
2 INCLUDED
6 MAX
LCD DISPLAY
YES
INTENSITY LEVEL
20
RECHARGABLE BATTERY
YES
MODES
12
INDEPENDENT INTENSITY CONTROL
YES
INDEPENDENT MODE CONTROL
YES
WIRELESS
YES
TOUCH SCREEN
YES
Weight
20 oz
Dimensions
4.25 × 2.125 × 0.5 in
13 reviews for Wireless 4-9
Rated 5 out of 5
M. M. –
Training for a marathon wrecks my legs, but this helps so much. Being wireless means I can move around while using it. Totally worth it!
Rated 5 out of 5
K. J. –
This relaxes my muscles and is so easy to use with the remote. Love it after workouts or just chilling. Works great with the Shoulder Wrap!
Rated 5 out of 5
rima.gurung141 –
Its my first time using a Tens by myself. So far, I found it pretty handy and accessible tool for massaging sore muscles. Its about a week since I have used it. It works well enough for me.
Ala –
That’s fantastic to hear that you’ve had a positive experience with using our HiDow EMS + TENS unit for yours sore muscles! It’s great that you find it handy and accessible. Consistent use can indeed contribute to muscle relaxation and relief. If you ever have any questions about optimizing your electric stim experience or exploring other self-care techniques, feel free to ask. Here’s to continued comfort and well-being!
Rated 5 out of 5
Kami Obman –
I love my Wireless 4-9! I also have the XP Micro and I have to say I’d be lost without them. I have rheumatoid arthritis and when I have pain and stiffness, I don’t have to struggle through it anymore. The remote is so easy to use and it’s nice not having to worry about getting wrapped up in wires from the Micro. Although on really bad days the wires are just fine. I’ll have the Micro and the Wireless turned on for relief. I wish there was a way to get the back pads on the hard to reach areas. I get pain between and just below my shoulder blades and I can’t reach to put them on. A vest or something to cover the upper, mid and lower back would be great. Oh the relief!!
Thanks HiDow for your wonderful products!
Rated 5 out of 5
Philip Johnson –
Received the HiDow Wireless -49 a little while ago and I have to say this machine is awesome, I’ve been using Tens machines for years but non of them compare with this one. The receivers holds a charge for a long time I got 8.5 Hrs from one charge on the receiver and the Remote last for I don’t know how long I’ve only charged it once that is when I first got it.
The machine has 9 different mode and is awesome at managing pane and the remote setup is just perfect for me , love the large electrode pad works perfectly for my lower back pain.
The only thing I wish the company would do is make a nice storage case for it. I highly recommend this unit you will love it.
Hidow Admin –
Thank you Philip for taking the time to leave us such a nice review! It made our day. We are delighted to inform you that we are currently working on a new storage case besides this one. Check back in a few months, we’d be happy to serve you again.
Rated 5 out of 5
Kate (verified owner)–
This unit made it possible for me to travel internationally again. It was easy to use on the plane (although I did apply the electrodes before boarding). The unit is small and lightweight and when used wirelessly very convenient. I would agree with the previous reviewer that the information manual could be upgraded and made simpler to understand. I have the feeling I’m not using the device to it’s fullest capacity. I have reduced my use of opioid medication significantly directly related to the relief the TENS unit provides. Thank you!
Rated 3 out of 5
WaxingIllusion –
This unit is effective at stimulating muscles and does help pain management. Howevever, the unit’s abilities are severely limited, not that the instruction manual will explain that. My primary issue with this product is that of receiver syncing. You can have up to four channels, but no two receivers can operate on the same channel. This means that if you want to stimulate your hamstrings during a workout you will be dancing all over as both hamstrings will be stimulated at different intervals. When I called tech support it took them about 15 minutes to conclude that this was indeed true, all four receivers will operate on different channels and are unable to sync to the same channel, yielding that you will not have any pair of pads operate simultaneously. But rest assured thanks to their tech support, you can try to sync them up by timing it correctly.
My other complaint is manual information, they lack all the modes listed out in the manual and you have to guess which of 9 modes you have.
Overall it is a quality idea, but the product engineering is a bit lacking.
Rated 5 out of 5
Ednah –
I am using wireless unit and it’s working well for me. The unit has 4 channels but with 2receivers (1 and 2). How can I get the additional receivers (3 and 4)?
Rated 5 out of 5
David D –
the wireless unit is amazing. the sensation is smoother than any other model or brand I have ever used. I got one for my mom and I and we both have noticed a significant difference in not only the way we feel but the mobility in the problem areas we use the device on. its easily the greatest gift you could get for a loved on who suffers from chronic pain
Rated 5 out of 5
Brandon chang –
I purchased the tens/ems because I’ve had back problems for a long time I’ve gone to doctors and chiropractic doctors and they only help temporarily and are very expensive I am very happy with my tens/ems and would recommend to anyone with back or muscle pain
Rated 5 out of 5
Sandra Strome –
I have the AcuXP-D And it does he job for me and my aching back.
However, can you tell me how to order more pads as mine are all worn out.
Thank you,
Dr. Strome
Rated 5 out of 5
Robert Horne MD –
I am a physician board certified in pain management. I bought one for myself on October 2, due to a torn lateral meniscus. It has been very helpful and has allowed me to avoid surgery to have the meniscus “cut out because I can’t repair it” per my orthopedist after he saw my MRI. I have recommended this to many of my pain patients
Rated 5 out of 5
Dr. Dan Semko –
This is one of THE best therapeutic units our patients have employed for pain management and muscle strengthening. The ability to utilize 4 independent receivers with independent modes and intensities with integrated individual timers sets this unit at the very top of available patient functional units. Each receiver and transmitter can be individually recharged within a very reasonable period. The entire system is “user friendly” and the HiDow support is absolutely stellar.
M. M. –
Training for a marathon wrecks my legs, but this helps so much. Being wireless means I can move around while using it. Totally worth it!
K. J. –
This relaxes my muscles and is so easy to use with the remote. Love it after workouts or just chilling. Works great with the Shoulder Wrap!
rima.gurung141 –
Its my first time using a Tens by myself. So far, I found it pretty handy and accessible tool for massaging sore muscles. Its about a week since I have used it. It works well enough for me.
Ala –
That’s fantastic to hear that you’ve had a positive experience with using our HiDow EMS + TENS unit for yours sore muscles! It’s great that you find it handy and accessible. Consistent use can indeed contribute to muscle relaxation and relief. If you ever have any questions about optimizing your electric stim experience or exploring other self-care techniques, feel free to ask. Here’s to continued comfort and well-being!
Kami Obman –
I love my Wireless 4-9! I also have the XP Micro and I have to say I’d be lost without them. I have rheumatoid arthritis and when I have pain and stiffness, I don’t have to struggle through it anymore. The remote is so easy to use and it’s nice not having to worry about getting wrapped up in wires from the Micro. Although on really bad days the wires are just fine. I’ll have the Micro and the Wireless turned on for relief. I wish there was a way to get the back pads on the hard to reach areas. I get pain between and just below my shoulder blades and I can’t reach to put them on. A vest or something to cover the upper, mid and lower back would be great. Oh the relief!!
Thanks HiDow for your wonderful products!
Philip Johnson –
Received the HiDow Wireless -49 a little while ago and I have to say this machine is awesome, I’ve been using Tens machines for years but non of them compare with this one. The receivers holds a charge for a long time I got 8.5 Hrs from one charge on the receiver and the Remote last for I don’t know how long I’ve only charged it once that is when I first got it.
The machine has 9 different mode and is awesome at managing pane and the remote setup is just perfect for me , love the large electrode pad works perfectly for my lower back pain.
The only thing I wish the company would do is make a nice storage case for it. I highly recommend this unit you will love it.
Hidow Admin –
Thank you Philip for taking the time to leave us such a nice review! It made our day. We are delighted to inform you that we are currently working on a new storage case besides this one. Check back in a few months, we’d be happy to serve you again.
Kate (verified owner) –
This unit made it possible for me to travel internationally again. It was easy to use on the plane (although I did apply the electrodes before boarding). The unit is small and lightweight and when used wirelessly very convenient. I would agree with the previous reviewer that the information manual could be upgraded and made simpler to understand. I have the feeling I’m not using the device to it’s fullest capacity. I have reduced my use of opioid medication significantly directly related to the relief the TENS unit provides. Thank you!
WaxingIllusion –
This unit is effective at stimulating muscles and does help pain management. Howevever, the unit’s abilities are severely limited, not that the instruction manual will explain that. My primary issue with this product is that of receiver syncing. You can have up to four channels, but no two receivers can operate on the same channel. This means that if you want to stimulate your hamstrings during a workout you will be dancing all over as both hamstrings will be stimulated at different intervals. When I called tech support it took them about 15 minutes to conclude that this was indeed true, all four receivers will operate on different channels and are unable to sync to the same channel, yielding that you will not have any pair of pads operate simultaneously. But rest assured thanks to their tech support, you can try to sync them up by timing it correctly.
My other complaint is manual information, they lack all the modes listed out in the manual and you have to guess which of 9 modes you have.
Overall it is a quality idea, but the product engineering is a bit lacking.
Ednah –
I am using wireless unit and it’s working well for me. The unit has 4 channels but with 2receivers (1 and 2). How can I get the additional receivers (3 and 4)?
David D –
the wireless unit is amazing. the sensation is smoother than any other model or brand I have ever used. I got one for my mom and I and we both have noticed a significant difference in not only the way we feel but the mobility in the problem areas we use the device on. its easily the greatest gift you could get for a loved on who suffers from chronic pain
Brandon chang –
I purchased the tens/ems because I’ve had back problems for a long time I’ve gone to doctors and chiropractic doctors and they only help temporarily and are very expensive I am very happy with my tens/ems and would recommend to anyone with back or muscle pain
Sandra Strome –
I have the AcuXP-D And it does he job for me and my aching back.
However, can you tell me how to order more pads as mine are all worn out.
Thank you,
Dr. Strome
Robert Horne MD –
I am a physician board certified in pain management. I bought one for myself on October 2, due to a torn lateral meniscus. It has been very helpful and has allowed me to avoid surgery to have the meniscus “cut out because I can’t repair it” per my orthopedist after he saw my MRI. I have recommended this to many of my pain patients
Dr. Dan Semko –
This is one of THE best therapeutic units our patients have employed for pain management and muscle strengthening. The ability to utilize 4 independent receivers with independent modes and intensities with integrated individual timers sets this unit at the very top of available patient functional units. Each receiver and transmitter can be individually recharged within a very reasonable period. The entire system is “user friendly” and the HiDow support is absolutely stellar.