Product information:

Power supply mode: ac
Power supply voltage: 1000-200 (V)
Ringtones: 61 types
Scope of application: 100 meters (open area)
Type: wireless doorbell
Product specifications: wireless doorbell (1 button + 1 ring)
Product color: matte white
Product specifications: one for one (1 transmitter + 1 receiver)
Working temperature: -30°C to +65°C
Working frequency: 433.92MHz+ 75KHz
Receiver voltage: 110-240V/50-60Hz (wide voltage)
Transmitter battery: 12V23A
Product ringtones: 61 optional
Product volume: 4 levels adjustable

Size information:

Packing list :
1x battery, 1x please press the doorbell sticker, 1x double-sided tape

Product picture: