- bluetooth smart 4.0 version, low energy technology - support mobile/tablet using bluetooth 4.0 - ultrathin & mini design as a tag - two-way anti-lost finder - built-in rechargeable 110mah lithium battery, support usb charging - app available on apple app store&google play store. - can used on kids, cars, keys, valuables, and any belongings, etc Specification: - product size:50*35*5.5mm - weight:8g (gw: 45g) - working range:10m, 360¡ã - working voltage:3.7v - working current:
