4-in-1 TENS EMS Unit | 60 Massage Modes, 4000Hz Muscle Stimulator

60 Adjustable Modes Relieve Muscle Soreness & Joint Stiffness

Features：

Product Advantages：
1. A total of 60 programs(Mode).
2. TENS： 23 fixed + 2 adjustable programs.
3. EMS： 13 fixed + 2 adjustable programs.
4. IF: 8 fixed + 2 adjustable programs.
5. RUSS: 8 fixed + 2 adjustable programs.
6. Adjustable intensity：0 – 120 levels. Max: 120mA.
7. Adjustable working time：5 – 90 minutes. 1min/step.
8. Mode and intensity of two-channel can be controlled separately.

Custom adjustable features
1. Adjustable pulse width and frequency.
2. Adjustable Working time.
3. Adjustable Cycle time.
4. Adjustable Intensity ( 1-120mA).
5. Adjustable Ramp Up/Contraction/Ramp Down / Relaxation (OFF) time.

Customized Programs：

TENS : Adjustable Frequency: 1 Hz – 800 Hz, 1 Hz/step. and Adjustable Pulse width : 50 us – 300 us, 1 us/step.

EMS : 1. Adjustable Frequency: 1 Hz – 800 Hz, 1 Hz/step. 2. Adjustable Pulse width : 50 us – 300 us, 1 us/step.
3. Ramp Up time : Adjustable, from 1 to 9 sec. 4. Contraction Time: Adjustable, from 1 to 60 sec. 5. Ramp Down Time: Adjustable,
from 1 to 9 sec. 6. Relaxation (OFF)time : Adjustable, from 1 to 60 sec.

IF（Interferential Current）.
1. PU 1: Adjustable Frequency: 4000 Hz – 4150Hz, 1 Hz/step.
2. PU 2 : Adjustable Frequency: 2500 Hz – 2650Hz, 1 Hz/step.
3. Adjustable Cycle time: from 5 to 60 sec.

RUSS（Russian Stimulation）.
1. PU 1 : Adjustable Frequency: 2500 Hz – 2600Hz, 1 Hz/step.
2. PU 2 : Adjustable Frequency: 2000 Hz – 2100Hz, 1 Hz/step.
2. Adjustable Cycle time: from 5 to 60 sec.

Function：

TENS Function
1. Relieve arthritis pain and nerve pain.
2. Rehabilitation and treatment of post-operative pain.
3. Relieve post-traumatic pain and sciatica pain.
4. Relieve joint pain, chronic intractable pain.
5. Relieve pain in the back, knees, shoulders, ankles, wrists, elbows, etc.
6. Eliminate inflammation and physical fatigue caused by long-term work.

EMS Function
Suitable for sportspeople: Pre-training warming up and Post-training recovery (Endurance/Maximum strength/Explosive
Strength/Toning).
1. Retarding or preventing muscle atrophy.
2. Relax muscle spasms and reduce muscle soreness.
3. Increase muscle growth and increase local blood circulation。

IF （Interferential Current）
Function: Promote tissue healing, improve circulation to injured tissues, pain relief, relieve muscle spasms, edema reduction, and stimulate deeply situated muscles such as the pelvic floor muscles. chronic intractable pain and post-surgical and post-trauma acute pain relief.

RUSS （Russian Stimulation）
Function: Strengthening muscles, increasing muscle size, improving muscular endurance, accelerating muscle recovery and reducing
muscle spasms.
Especially for athletes: such as anterior cruciate ligament (ACL) tears, with physical therapy programs to improve strength.

Note：IF is Interferential Current(4000Hz), RUSS is Russian Stimulation(2500Hz). TENS and EMS are low-frequency, IF and RUSS are medium-frequency.

Buyer Questions & Answers

Q: Can this machine help with chronic back or neck pain?
A: Yes. It combines TENS, EMS, IFC, and RUSS therapies to address pain and muscle tension. TENS helps block pain signals for immediate relief, while EMS stimulates muscles to improve circulation and reduce stiffness. Many users report reduced discomfort in the back, neck, and joints with regular use.

Q: Is this device safe to use? Are there any side effects?
A: When used as directed, it is safe for most adults. The only common temporary effect is mild skin redness under the pads. Do not use if you have a pacemaker, are pregnant, or have certain heart conditions. Consult your doctor before use if you have any underlying health concerns.

Q: How long do the electrode pads last, and can I buy replacements?
A: With proper care (clean skin before use, store in a cool place), the included pads typically last 20–30 uses each. Standard TENS replacement pads are compatible with this unit and can be purchased separately.

Q: Can I use this while working or doing daily activities?
A: Yes. The device is lightweight and rechargeable, allowing hands-free use while sitting at a desk, watching TV, or doing light chores. Adjust the intensity to a comfortable level for extended use.

Q: What is the difference between TENS, EMS, IFC, and RUSS modes?
A: TENS focuses on pain relief by blocking nerve signals. EMS stimulates muscles to aid recovery or improve strength. IFC and RUSS are advanced modes designed for deeper, longer-lasting relief from chronic pain and stubborn muscle tension. The 60 adjustable modes let you customize treatment to your specific needs.