Do you need prescription strength painkillers? A TENS unit muscle stimulator and electric massager, which can relieve pain, can be used as a muscle massager or shoulder massager, provide wrist tube relief, and can be used as a muscle relaxant (very suitable for muscle recovery)More than 1 million 7000 devices have been sold: the leader of consumers' favorite back pain relief devices and physical therapy devices, which can provide instant and lasting drug free muscle pain relief for back pain, neck pain, tennis elbow and bursitisLeader since 2008: For more than 10 years, medical professionals have been most fond of TENS equipment, which is used to provide drug free back pain relief and treat common diseases such as neck pain, carpal tunnel relief, arthritis, shoulder, knee, elbow, leg and foot painImmediate pain relief: TENS machine is equipped with multiple TENS treatment modes, which can immediately relieve muscle pain. It is a first-class leader with all the electrotherapy machines and muscle electric massagers needed for TENS treatment. The pulse amplitude or intensity level can be adjusted in 10mA increments within the range of 0-100mA, controlled by the corresponding knob on the top of the device, and applicable to two channelsDual channel TENS unit: TENS 7000 TENS unit provides TENS treatment, which is a muscle stimulator, nerve stimulator and electric massager. It has independent dual channels and can control four (4) TENS unit pads (electrodes) for targeted pain reliefNote: Please refer to the user manual and guide before use. The pulse amplitude or intensity level can be adjusted in 10mA increments within the range of 0-100mA, which is controlled by the corresponding knob on the top of the device and is applicable to two channels. Use electrodes in pairs. When one electrode is used, the device will not work. The treatment is timed with the device, and the device will automatically close after a certain set time Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!