Specifications:  Working frequency: 433 MHz;  Receiving distance: 300M( in open area );  Transmitter size: 75 x 51 x 20 mm;  Receiver size: 95 x 65 x 24 mm;  Receivers Rated...

Specification  Connection Type: Wireless;  Power: Electric Supply;  Wireless Frequency: 433MHz;  Max. Detectors Support: 100 quantity;  Max. Remote Support: 10 remote control;  Music Quantity: 58 kinds of music;  Wireless Distance: 100...

Specification:  Type: Doorbells;  Model Number: FA78;  Doorbell Type: Wireless;  Power Source: AC;  Power Source: Self-powered;  Power supply: 110V-240V;  Working frequency: 433MHz;  Ring Tone: 60 ringtones;  Waterproof: Yes;  Volume: 5 Levels...

Specifications： Material : ABS+PP;  Color : Black/White/Silver/White Gold/Black Gold;  Product size : -Transmitter:776X20X46mm;  -Receiver: 91X59X25mm;  Weight : 130g;  Receiver voltage : 110-220-240V,US/EU Plug adapters;  Transmitter : 1*23A 12V alkaline battery (not...

Specification: Weight: 150g; Receiver voltage: 110V/220V; Dimensions: Transmitter:72x46x21mm,Receiver:92x62x32mm; Color: Black/White; Package  Included: 1*Transmitter; 1*Receiver; 2*Doorbell sticker; 2*Double sided tapes; 2* Screws; 

Specification: Receiving distance:300 meters in open area; Volume:5 levels(can be mute) 0-110db; Melody:60 pcs; Size:Transmitter:72x46x21mm,Receiver:92x62x32mm; The button cannot be placed on an iron door because it will interfere with the signal; Package Included: 1 * Smart Wireless Doorbell Waterproof Button; 1 * Receiver; 

Specification:  Weight: 150g;  Material: ABS;  Color:White/Black;  Plug: EU/US Plug-in;  Receiver voltage: AC110-240V;  Ring Tone:58 polyphonic ring tones for optional;  Waterproof: IP44(Transmitter);  Remote Range: 300 meters in open area;  Transmitter power:...

Specification: Weight: 300g; Dimensions: Transmitter:76x43x22mm,Receiver:90x55x25mm; Color: Black/White; Package  Included: 1 *Transmitter; 1* Receivers; 2* Double sided tapes; 2*Screw;