Rl-Bt01 Bluetooth Speaker Doorbell

Bluetooth Speaker/Main Unit Battery: 3.7V 1000mAh lithium Standby current: < 1.2mA Operating current: < 900mA Bluetooth version: 5.2 Speaker: 4Ω 5w THD+N: <10% Demodulation: OOK Wireless frequency: doorbell: 433.92MHz±250KHz bluetooth speaker: 2.4GHz Wireless distance: doorbell : 150-350m(open area ) bluetooth speaker : ≈20m(open area ) Operating temperature : -10~50 °C Push Button for Bell Battery: DC 3V (CR2032*1) Standby current: <2uA Operating current:<25mA Transmission power: +10dBm Transmission time: 2.2s/transmission Wireless frequency: 433.92MHz±250KHz Antenna gain: 2dBi Operating temperature: -15~50 °C Use environment: indoor or outdoor IP rating: IPX5