Smart Wireless Doorbell Night Light With Hand-Wave Sensor For Home Use, Specification: 1 Button 1 Receivers US Plug

1. Same-frequency, unique-code pairing: one-to-one operation effectively prevents interference or accidental triggering caused by neighboring units. 2. Outdoor activation: activate by placing your palm near the outdoor unit's sensor area or by lightly touching the doorbell icon. 3. Signal transmission: the outdoor unit wirelessly transmits the signal to the indoor receiver. 4. Indoor alert: the receiver emits a ringtone and a colorful ring light illuminates, while a bottom nightlight provides ambient lighting. 5. Ringtone/Volume adjustment: press the selection button on the side of the receiver to change the ringtone; press the volume button to adjust the volume level or enter silent mode. 6. Nighttime use: in silent mode, pressing the doorbell triggers only the light without the audible ring, minimizing nighttime disturbance. 7. Ringtone selection: features a choice of 38 different ringtones. 8. Convenient settings: easily switch ringtones by selecting your preference and re-pairing; adjust volume directly via the dedicated button. 9. Dual activation methods: supports both touch-free hand-wave sensing and manual button-press calling. 10. Transmitter battery: 23A 12V battery (not included).