BT-S2 1000m 2 Riders Bluetooth V3.0+EDR Headset FM Radio Motorcycle Helmet Wireless Waterproof Interphone 4GHz ± 410MHZ

4GHz ± 410MHZ

and make the cleaning daily at the fixed time even you are not in office or in home

which would be a better choice

95" Battery Capacity: 250mAh Waterproof Rating: IP67 Language: Chinese

creating a clean and comfortable home

BT-S2 1000m 2 Riders Bluetooth V3.0+EDR Headset FM Radio Motorcycle Helmet Wireless Waterproof Interphone 4GHz ± 410MHZProduct Features: Main Features: Advantages of Bluetooth 3. 0+EDR : Wireless headset for Bluetooth enable cell phone at a range of up to 10 meters, bike to bike intercom for rider& passenger or two separate bikes up to 800 1000 meters. Up to 10 hours talk time when connected to cell phone. Up to 6 hours talk time when using the intercom feature. Up to 300 hours standby. Handsfree Call: Call out, call answer, call reject, call hang up. receive a cell