[Tuya app remote control]the BLE hub is required. Your operations can be realized from anywhere. [Convenient Installation]With a simple installation, you can easily install it or door of your home. when not in use, it can be used as a keychain to protect your valuables. [Low Power Alert]The lock sends a low power alert when the battery is running low, ensuring that you always have enough power. [0.2s Speed Recognition]The lock recognizes fingerprints in just 0.2 seconds, ensuring quick and efficient access. [Built-in Rechargeable Battery]The lock comes with a built-in rechargeable battery, eliminating the need for frequent charging. Feature Power supply mode:2*7#Battery Application:for Travel luggage, cabinet, iron gate, tool box, locker, etc Material: zinc alloy colour: white Package Contents: 1 x Lock Tough 1 x Install Spplies 1 x Sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.