Features:1. Supports pairing with your wifi doorbell.2. Easy to install and use.3. 52 Different melodies for selection.4. Ultra-low power design, power saving and long-lasting use.5. The remote controlled wireless doorbell you always needed: Forget about wires, cords, drilling through walls, and electrician bills.6. Designed for flexibility and utility, this wireless doorbell for home comes, so that you can hear their chime no matter where you are. - Specification:Color: Black - Power consumption: 10 m - WTransmission power: 0dbm - Sensitivity: – 110 DBMNet weight: 92 g - Volume: up to 110db - Size: 82 × 82 × 20 mm - Package includes: 1 x Indoor Doorbell Receiver 1 x User instruction