[Shoulder Red Light Therapy Device: This red light therapy shoulder pad is made with 3 in 1 LED light Diodes (2*660nm + 1*850nm) that total has 280pcs 660nm red lights and 140pcs 850nm near infrared lights. One piece design with adjustable wrap of neck and shoulder area can fully cover neck shoulder shoulder blade and back for effective pain relief. Rechargeable Power Controller: Red light therapy for shoulder and neck is designed with 6000 mAh magnetic power controller. Real cordless designed power controller make light therapy more portable and easier at home use. Before first use it is better to have a charging for a long battery life. Light Intensity & Pulse Mode: Red light therapy for shoulder back comes with newest functions that has 5 levels of light intensity (H1: 40% H2: 60% H3: 70% H4: 90% H5: 100%) and 11 frequencies of light (Steady Light: 00HZ Pulse Mode: 01HZ to 10HZ). Choose the optimal light therapy to yourself for targeted pain relief on different parts. Three Light Therapy Modes: Red light therapy for shoulder pain upgrades with 3 light therapy modes. Working with Red & Near Infrared Lights/ Only Red Lights/ Only Near Infrared Lights. 660nm red lights can reach the deep layers of the skin to stimulates cell repair and promote circulation. 850nm infrared light can deeply penetrate into joints muscles and bones for pain relief. Adjustable Timer & Good Present: Infrared light therapy for Shoulder is safety with auto-off time seting from 5 to 30 mins. A good present to your parent family and friends. This package includes one red light therapy device for shoulder and neck one 6000 mAh magnetic power controller one charger and one type C cord.]