【20 Intensity Levels】The Tens Unit is a rechargeable electric massager with 20 preprogrammed massage Levels.Dual A&B channels for your muscle relief. It can stimulate the sensory nerves and muscles, activate specific natural pain gate mechanism, then reduce pain and muscle spasms. The Tens Unit can be applied in: arthritis, back pain, knee pain, leg pain, neck pain, period pain, shoulder tension, sports injuries. It’s a good tool of pain relief during work.
【Free EVA Case】The Tens Unit is gifted with a Free EVA hard protective case, which provides a simple storage system for the tens unit and lead wires. You won’t worry about how to deal with the mess after using the Tens Unit any more. It brings much convenience to manage lead wires, pads and machine. Additionally, this EVA case can protect your massager from damage caused by an accidental fall. It’s also portable during travel and work.
【Rechargeable and Timing Function】Built in Powerful Rechargeable Lithium Battery, which makes the tens unit can be used about 10 hours continuously. The Tens Unit can be connected to a wall charger, power bank or USB port to charge. The battery level is shown on the screen which can remind you of charging the Tens Unit timely.There are 6 timing functions: 20 minutes default timer and adjustable from 10-60 minutes.

COMBO UNIT: Quad-Stim is a combination EMS unit (Electro Muscle Stimulator) and TENS machine (Transcutaneous Electrical Nerve Stimulation). A TENS EMS unit is used for pain management, massage, relaxation, and as an electric pulse muscle stimulator.
4 CHANNELS: This EMS TENS unit is unique with four controllable and independent output channels, each with its own intensity level adjustment connect to an electrode pair, totaling 8 electrodes.
8 CUSTOMIZABLE MODES: Quad Stim has 5 TENS machine modes and 3 EMS muscle stimulator modes and adjustable Pulse Rate and Width make for an extremely versatile TENS massage unit.