Very small size, can be used as key chain dongle With plastic clip, you can use it as file clip, belt clip...etc. Over distance alarm for your Mobile Phone / Tablet Computer. If distance between your device is over the pre-set limit, it will give you warning by vibration, beeping sound and LED flashing light immediately. Once your valuable Phone / Tablet computer are almost lost, you will be reminded and you could response quickly to take it back Indication of Incoming phone call by Vibration and LED flash light, you can reject the call with the iAlert or you can take the call with your Phone One key operation, easy to cancel current vibration or calling-in quietly Distance of action can be adjusted from 1 Meter to 10 Meter ( but it is not suggested for distance under 3 Meter) Easy Auto pairing with your Mobile Phone/ Tablet Computer. After first synchronization, i-Alert could remember your device and can be automatically connected in future Very simple and user friendly operation Simple battery charging by USB connectionBluetooth version: V2.1 Security distance: 3-10M Automatic energy-saving Built-in Li-Polymer Rechargeable battery Standby time: 7 Days Battery charging : USB connection Weight: Less than 25g Dimension: About 30(H) X 18(H) X 10(D) mmSE-BT-IA-01 User Manual USB Charging Cable Check out my other items!