DGXINJUN Infrared Red Dual Light Therap-y for Leg & Arm Device! 660NM Red Lights: Especially effective for promoting blood circulation and increasing collagen. 880NM Near-infrared Lights: Penetrates deep into the muscles joints bones for enhancing muscle relaxation improving immunity and reducing aches. Packing List: Infrared Light Pad ×1 Power Adapter ×1 Timer Controller ×1 DC Cord ×1 Specification: LED Type: LED DIP Light Beads: 104pcs Red Lights + 104 pcs Infrared Lights Material: 75% Neoprenne + 25%Velvet Input voltage:AC100-240V Output voltage:DC120V It s safety to use for low working voltage design. ONE YEAR FULL WARRANTY on the whole product. LIFETIME FREE REPLACEMENT on charger controller and connectors!