Bán E Waterproof LED Wireless Doorbell 300M Range 52 Songs Chime Door Bell Receiver giá tốt nhất

E Waterproof LED Wireless Doorbell 300M Range 52 Songs Chime Door Bell Receiver Features: The use of microprocessor control, double-sided PCB micro-power design. The frequency of 433MHz, can be customized other frequencies. Wireless design for easy installation. 4 levels adjustable volume from high to low. Touch the button configuration, superheterodyne learning code on the code mode Double-sided stability of the PCB, the chip standby sleep up to micro-level. Suitable for home, office, villa, hospital, school, factory, etc. Descriptions: Power Source: AC(Receiver), Battery(Transmitter) Power supply: 110V-220V-240V Working frequency: 433MH Ring Tone: 52 ring tones Waterproof: yes Volume:4 files 10-110db Battery mode(Transmitter): 12v 23A battery (not include battery) Receiving distance: 300M Remote (in open area) Specifications: Plug type: EU, US Material: plastic and metal Transmitter: 81*39*17mm Receiver: 81*81*45mm Color: black, white, golden Package included: 1 x Transmitter 1 x Receiver Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!