Securlec Plug-In Wireless Doorbell & Chime - 100m

Power supply: receiver...230Vac 50Hz
Battery: transmitter...12V (23A)
Frequency: 433.92MHz(±150kHz)
Range: 100m (Open air)
Tunes: 38 Melodies
Dimensions: receiver...116*60*42mm
Dimensions: receiver...88*20*36.5mm
Weight: receiver...85g
Weight: transmitter...25g