•[Multi-function] Each key supports two key events: click and long press. Each trigger can be bound to a different set of operations •[Intelligent linkage] The wireless double key switch can link the intelligent appliances at home to enable/disable the intelligent appliances at home with one key •[High precision connection] Wireless double key connection has high precision and wide range •[Ultra-low power] Wireless dual-key switch has low power consumption and long battery life •[Easy installation] Wireless double key switch can be attached to the wall or can be directly held for use Specifications: •Operating temperature: 5℃-60℃ •Operating humidity: 20%RH-80%RH •Wireless protocol: 2.4GHz Wi-Fi Zigbee 3.0 •Operating voltage: DC 3V •Battery type: 2*AAA batteries (not included) Package included: •1 x Wireless Switch •1 x English User Manual