Model : r1 Material: zinc alloy+plastic Color: white/blue/black/red/yellowgreen Communication system: bluetooth v3.0 Transmitting frequency: 2.4ghz-2.4835ghz System supported: bluetooth hid, device with photographing function Efficient distance: up to 10m Battery cell: cr2032 Dimensions: 73.5*30.5*10.3mm Weight: 26g Features: 100% brand new and high quality bluetooth remote control self-timer. Premium, sturdy build quality in a sleek, durable and portable design. Powered by built-in lithium battery, it could be take thousands pictures after fulling charge. Long distances for use, up to 10 meters. Come with a key-chain design, easy to carry. It is a perfect remote for selfie lover and group photo taking. Customized logo can be branded on r1 for promotion. Trade term: fob shenzhen R1 compatible with all iphone/ipad, tablet computer and other smart phones devices. If r1 doesn't compatiable with your mobile, simply download the app "camera360" to try again. Battery life of up to two years if the shutter is turned off after use. The cr2032 battery can be replaced if necessary. -