Description :<br>Havir HV-102 Bluetooth 4.0 Anti-lost Alarm Wristband Device Bracelet Support Android\/ iOS<br>What do you do when you are walking with your kids but lost her \/ him accidentally?What do you do when you get off the bus but find the handbag left on bus?What do you do when you lose your valuables?What do you do when you find you lose your phone just now?Owning the Phone bidirectional anti-lost Bluetooth alarm， you will not be easy to lose anything.Useful to stop loosing kids.Adjustable bluetooth range up to 30 meters.With watch strap detachable beacon， could be used as a normal ibeacon.<br>   <br>  Specifications :                Brand         HAVIR         Product name         Bluetooth-Antilost               Model         HV-102         Notice         IOS : bluetooth 4.0 &amp;amp; above version， Android : Requires Android 4.3 or above version               Material         ABS Plastic         Bluetooth chip         CC2541               Bluetooth Core         Bluetooth 4.0         Stand-by time         Six months               Color         Red \/ White \/ Pink \/ Rose red \/ Yellow         Frequency range         2402MHz - 2480MHz               Operational distance         10-30M         Distance         10-30M               Application         Anti-lost\/Security\/seek         Power supply         3V               Alarm volume         70DB         Consumption         1.5mw               Battery Type         2032Cr         Battery Capacity         200mAh      <br>  For IPhone &amp;amp; Android Application :   You can record a sound as the alarm sound.   You also can set it work or not， according to your work and rest time. It will remember the set as your alarm clock.   <br>   <br>   <br>   <br> Package includes :  1 x Havir HV-102 Bluetooth Anti-lost Alarm Wristband (Red \/ White \/ Pink \/ Rose red \/ Yellow for optional~)(Battery included.) 1 x English User Manual  Details pictures :