Features: *High-quality material: Made of high-quality material, which is durable and wear-resistant, can be used for a long time and is not easy to break. *Mobile phone remote control function: After the valves is successfully connected to the Apps, it supports remote control of the Apps through a smartphone and also supports hands-free voice control. *Battery-powered: The smart radiators-valves is powered by 2*AA batteries (not included), with long battery life, low power consumption and long battery standby time for safe use. *Holiday Mode: If you plan to leave home for a few days, Holiday Mode will automatically activate and maintain the set temperature. It helps save energy and reduce unnecessary expenses *Programmable weekly plan selection: supports manual setting of 5+2 weekly plans, and has six programmable cycles, allowing you to set personalized indoor temperature plans under different circumstances. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: ABS Power supply: 2*AA* Batteries (not included) Size: Smarts Radiator-Valve Size: 110*59mm Degree of protection: Ip20 Constants temperature tolerance: ±0.7 DegreeC Maximum radiated power: 19dBm Frequency[ Hz]: 2.4GHz Connection: M30x1.5mm Typ. open area RF range: >60m Temeprature Range: 5 DegreeC-30C Working temperature: -10C-40C Package List: 1 x Wireless Gateways or 1 x Smarts Radiator-Valve or 2pcs x Smarts Radiator-Valve or 1 x Smarts Radiator-Valve (with 1 Wireless Gateways) or 2pcs x Smarts Radiator-Valve (with 1 Wireless Gateways)