Solar-Powered Wireless Pool ThermometerThis RGB floating pool thermometer is solar-powered and wireless,perfect for summer use in pools and baths. Wide Temperature RangeAccurately measures water temperature from -19.9 to 70 (-3.82 to 158) with LED display and switchable / units. RGB Ambient LightingFeatures multiple RGB lighting modes including full spectrum changes,directional transitions,7-color cycle,and individual color options for a customizable pool atmosphere. Long-Range Wireless TransmissionTransmits temperature data wirelessly up to 100 meters in open areas,ensuring reliable readings from a distance. Durable and WaterproofWith an IP68 rating,this thermometer is fully waterproof and built to withstand pool environments. Rechargeable BatteryEquipped with a 2200mAh built-in battery,rechargeable via solar power or USB Type-C for continuous operation. Indoor Receiver UnitIncludes a separate receiver that displays indoor temperature,humidity,and outdoor pool temperature with comfort level indicators. Specifications: Temperature Range: -19.9 to 70 (-3.82 to 158) Waterproof Rating: IP68 Battery Capacity: 2200mAh Solar Panel Size: 3.0 inches Charging Methods: Solar (3.5-5.5V) and USB Type-C Material: ABS plastic Wireless Range: Up to 100 meters in open areas Indoor Humidity Range: 10% - 90% Features: Child lock,ambient light timer (up to 360 minutes),MAX/MIN temperature recording Receiver Functions: Indoor temperature/humidity display,backlight,pool comfort level indicator Package included: 1 x Pool Thermometer 1 x Receiver 1 x Lanyard 1 x USB to Type-C Power Cable 1 x USB to DC Power Cable 1 x Chinese and English Manual