- Prevent your precious things from loss<br />- Mini size and compact design<br />- Transmitter and Receiver range adjustable: 0.5~15M<br />- Batteries included (Transmitter: 1*CR2032; Receiver: 2*CR2032)<br />- On/off switch for operation control<br />- 30db alarm and vibrate function<br />- Comes with English user manual<br />                                                                                                                                Dimensions: 1.81 in x 1.5 in x 0.59 in (4.6 cm x 3.8 cm x 1.5 cm)<br />Weight: 4.06 oz (115 g)