Sell (24 hour SHIP) (in stock)Door bell Waterproof Self powered Wireless Doorbell 300M range EU plug 52 best price

* The difference between self-powered battery and battery doorbell style * self-feeding 1.1 bell button that does not require battery Self-powered, conversion of kinetic energy into electrical energy 1.2 self-powered boom knob at the distance: 120 M (in open area) 1.3º batrerybottom: 77 * 45 * 25mm * Battery style ring 2.1 The batrery buttonbell needs 12V23A battery (not to include the battery), this is a standard battery 2.2o batrerybuttoning the distance: 300 M (in open area) 2.3.o batrerybottom size: 75X51X20 MM *same place 1. Tap the setup button, learning code on superheterodyne code mode 2. Friends, our sorting button is IP44 waterproof, general use is no problem, but heavy rain can affect life expectancy, we recommend the purchase of waterproof cover, so use more and more insurance 3. Double-sided stability of the PCB, the sleep chip waiting until micro-level 4. The use of microprocessor control, double-sided PCB micro-power design 5. The frequency of 433 MHz, can be customized other frequency 6. Volume: 3 files (can be muted) 0-85db 7. Ringtones: 38 pcs 8. Receiver size: 95X65X24 MM 9. Rated Voltage Receptors: AC 110 V-220 V-240 V * self-feeding