Brand Name: agdoad High-concerned chemical: none Origin: Mainland China Is Batteries Included: Yes Effect: Release Pain From Illness Model Number: 3 in 1 heated knee pads for joint Number of Pieces: One Unit Material: Composite Material Application: Shoulder Item Type: Braces & Supports Suit for: Knee, Shoulder and Elbow brace Feature 1: shoulder belt for back alignment Feature 2: back support belt Feature 3: shoulder temperature massage Feature 4: knee temperature massage Feature 5: elbow temperature massage Feature 6: knee pad for knee Feature 7: shoulder correction band Feature 8: knee brace for joint pain Tracking: YES Support: Dropship/wholesale/free shipping Battery capacity: 4000mAh Long strap Length: 68cm Short strap Length: 30cm Charing cable length: 100cm For knee massager: Joint discomfort, Cold knee, Knee osteoarthritis ,Sports injury For Shoulder massager: Shoulder arthritis,shoulder dislocation,Rotatar culf tear, shoulder tendonitis , shoulder instability Best gift: perfect gift for family & friends