No gateway is required within Bluetooth signal range.<br> If you need remote control regardless of distance, please also purchase a multi-mode gateway on the link<br> <br> <br> Non-opening invisible smart lock<br> <br> Say goodbye to traditional key,mobile phone one-key unlock<br> <br> The mobile phone is your key. Tuya APP quickly unlocks with one key, supports multi-language system, Bluetooth 10 meters effective connection, and installs a smart drawer switch to bid farewell to the trouble of finding and losing keys everywhere.<br> <br> Low power consumption, long-lasting battery life: standby up to 1 year<br> <br> Remote sharing, sharing other people's time control<br> <br> Switch records: inquire at any time including sharing records of others<br> <br> Anti-lock: low battery reminder, low battery automatically unlock<br> <br> Bluetooth 5.0 unlocking speed 1-2s, unlocking distance 10m<br> <br> Specifications:<br> <br> Name: Smart Switch<br> <br> Material: ABS material<br> <br> Working voltage: 6V (four alkaline dry batteries)<br> <br> Working current: dynamic 200mA, static <20uA<br> <br> Working temperature: 5%~95%RH<br> <br> Product characteristics: moisture-proof / high temperature resistance / corrosion resistance<br> <br> Working temperature: -10 50<br> <br> Package Included:<br> <br> Smart Switch*1