Kensington Proximity Tag for Android: * Bluetooth 4.0/Bluetooth Smart * Alarm audio output: fob 95dBa, tag 84dBa * Replaceable battery: model# CR2016 lithium coin battery * Find range: tracks up to 30" * Proximity Tag App dashboard tracks your most valuable item * Proximity alarm with customizable range tells you when you"ve left your valuable behind * Find alert helps you with on-the fly recovery of your valuable * Robust and ultra-slim tag design fits easily into wallet * Up to 6-month battery life on tag for low maintenance * Compatible with Samsung Galaxy S III and S4 and Galaxy Note II smartphones and Galaxy Note 8.0 and Note 10.1 tablets