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