Doorbell wireless hoco HI25 - កណ្តឹងផ្ទះ wireless hoco HI25

1. Transmitter: Material: ABS; size: 70*40*11mm; weight: 23g Wireless frequency: 433.92 MHz; wireless distance: 150m (open area) Battery capacity: 210mAh)/CR2032; use time: 6 months; standby time: 18 months 2. Receiver: Material: ABS; size: 88*46*26mm; weight: 42g Wireless frequency: 433.92MHz; wireless distance: 20m (indoor) 3. Ringtone: 60