Features: Bidirectional motorcycle alarm, bidirectional remote control with vibration, sound, when the host alarm, the remote control in the receiving range also alarm and vibration. With remote control start, turn off, double flash, search car, sensitivity adjustment and other functions. This electronic Anti-theft Alarm with remote controller can let your motorbike keep away from thieves. The host can be adjusted to mute mode, and the remote control also has mute mode. Remote control, compact and portable design, supports long-distance control of motorcycle. Specifications: Material: Metal ＋ Plastic Remote Control Size: Approx. 5.5 x 3.5 for cm / 2.17 x 1.38 inches Package Includes: 1 Piece Control host module 1 Piece 125db alarm 1 Piece Two-way remote control 1 Piece One-way remote control 1 Piece Connecting wire set note: Please allow 1-2cm errors due to manual measurement. Because of the different display of each computer, the pictures may not reflect the actual color of the item.