The 3-in-1 TENS EMS Unit Muscle Stimulator is a versatile massage wand designed for pain relief and relaxation. With 30 different modes and adjustable settings, this massage wand offers a variety of therapy options such as TENS Therapy, Relax Massage, and EMS Stimulation. The rechargeable lithium battery provides up to 40 hours of endurance per full charge, making it convenient for use on the go. The unit features LCD display, dual channel operation, and latex-free pads for a comfortable massage experience. Perfect for targeting specific body areas like legs, shoulders, waist, back, and elbows, this CE certified and RoHS compliant massage wand from AVCOO is a reliable choice for muscle stimulation and pain relief.