Features Suitable for Bikes, Electric Bike, Motorcycles. Vibration alarm, 10 level sensitivity adjustable. Made of premium material, guarantee great performance, sturdy and long lasting. Super easy installation by pasting with double-sided sticker or tying it with strap. Wide range of applications. It can be used for anti-theft of doors and windows of homes, companies and stores, counters, internet cafes, bicycles, electric cars and automobiles. Specifications Material:ABS Color:Black Remote control: 27.8*558.9 (mm)-Oval WL09C Remote control: 27.8*58*10.3 (mm)-Square WL03C Battery:Main unit - 2 x AAA batteries (not included) Remote control: 1 x 20mA alkaline battery ( included) Communication frequency: 433MHz Alarm volume: 110dB (30cm test) Operating temperature: -10C-60C Storage temperature: -20C-70C Package size11.5*9.5*3cm Package weight: 65g Note Product does not include key fob! Battery! Default shipping a host a rectangular remote control! Package List: 1 * Alarm 1 * Remote Control