【Dual Power Supply】Solar panel and Type-C USB charging ensure continuous operation, with 20+ days of standby time on a single charge. 【Versatile Alarm Modes】Choose from voice, light, or combination alarms, with 3 alarm sounds and a maximum volume of 95dB@1m for effective alerts. 【Outdoor-Ready Design】IPX5 waterproof rating and wide operating temperature range (-10°C to 60°C) ensure reliable performance in various weather conditions. 【Anti-Tamper Protection】Built-in tamper alarm triggers when the device is moved or dismantled, enhancing security. 【Smart App Control】Set alarm duration, choose ringtones, and manage device status remotely through the Tuya Smart app. Specifications: Power Supply: 5V/1A Type-C USB Powered Battery Type: 18650 Rechargeable Battery Wireless Protocol: Zigbee 3.0 Wireless Standard: Zigbee IEEE 802.15.4 Wireless Range: 45m Standby Current: 2.5mA Alarm Ringtone Options: 3 Types Maximum Alarm Sound: 100dB @ 1M Waterproof Rate: IPX5 Working Temperature: -10°C ~ 60°C (14°F ~ 140°F) Working Humidity: 1% ~ 95%RH Main Body Size: 200×150×66mm Solar Panel Size: 132×62mm