⭐BUY ONE GET ONE FREE: Buy one red light therap-y shoulder device get one infrared light neck pad free. One package has one red light therap-y shoulder pad one infrared light neck pad two DC cords one power adapter and one timer controller in the package. ONE YEAR FULL WARRANTY on the whole products. LIFETIME FREE REPLACEMENT on charger controller and connectors! ⭐Shoulder & Neck Light Therap-y Device: This red light therap-y for shoulder pain is made of 488pcs 660nm red lights and 244pcs 850nm near-infrared lights. And the red light therap-y neck pad has 96pcs 660nm red lights and 48pcs 850nm near-infrared lights. Two devices can fully cover the shoulder shoulder blade and neck which is good for pai-n re-lief. ⭐Effective Pain Relief: 660nm red lights can reach the deep layes of the skin to stimulates cellular rep-air and promote the circylation. And 850nm infrared lights can deeply penetrate into bones joints nerves and muscles to reach your shoulder and neck for relaxing muscle relie-ving pai-n and improving recovery. ⭐Two Light Therap-y Modes for Shoulder Pad: This 2022 newest red light therap-y shoulder wrap has two modes including steady mode and pulse mode. The steady therap-y mode can promote the circulation for muscle relaxation. And the lights can flicker 10 times one second (10 HZ) in the pulse mode which can stimulate cells to repair and deeply penetrate into joints and muscles for shoulder blade pa-in re-lief. ⭐Upgrade & Safe Infrared Light Therap-y: Red light therap-y wraps are designed with Newest SMD Technology that one square light includes three light sources (2*660nm Red light & 1*850nm infrared light). It is recommended by doctor and is suitable for most people that has adjustable wrap. Work with auto shut-off timer for 20 minutes this device can be used multiple times per day and it is safe and harmless for all skins. Specification: (Back Pad) infrared Light Beads: 2 × 244pcs Red lights + 244pcs IR lights (Neck Pad) infrared Light Beads: 96pcs red lights + 48pcs IR lights Material: 75% Neoprene + 25% Velvet Wavelength: 660nm + 850nm Pulse Rate: 10HZ Light Beads Craft: SMD 3IN1 Bulb Temperature: Max 104℉ Packing List: Shoulder Pad ×1 Neck Pad ×1 DC Cord ×2 Timer Controller ×1 Power Adapter ×1 Synopsis ×1 Note: Color difference between the real object and the picture is normal. If you have any quetions you can contact us! 3-7 Fast delivery Free lifetime replacement parts 1 year warranty!