A10 Wireless Waterproof Doorbell 1 x Button 1 2 Receiver 300M Remote Control Smart Cordless Home door bell 60 chime US EU UK Plug

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Eye-catching backlight flashes when someone pushes the doorbell. special suitable for the elderly, deaf, and pregnant women Uses machine-learning to prevent interference from other wireless transmitters Designed to last up to 25 years Colors: White, Black Volume : 5 levels 0-110dB Waterproof Rated : IP44 Transmitter Battery type : 12V23A alkaline battery (do not include) Frequency : 433Mhz Applicable temperature : -30 Celsius to 70 Celsius Applicable Space : Home/Office/Villa/Hotel/Hospital/Apartment Doorbell Type : Wireless 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 voltage : AC 110V-220V -240V The transmitter 12V23A battery factory pre-installed (battery not included) Features and specifications: 1.The button supports up to 20PCS, and the receiver supports up to 100pcs. 2.If multiple buttons are paired with one or more receivers in the same system, each button can be set to a different ringtone. 3. Power-off memory function: Turn the power on again after power off, no need to re-adjust and lock the ringtone. 4. The transmitter has no screw chuck design, and it can be waterproof and dustproof without rubber ring. 5.The transmitter USE a 23A12V alkaline battery (not included battery). 6. Receiver voltage: 110-220-240V. 7.The receiver is available in a variety of plugs, US/EU/UK Plug and AU adapters, suitable for most countries. 8.Receiving distance: 300 meters in open area. 9.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss. 10.Receiver has 5 levels(can be mute) 0-110db,60 music to choose from. 11.Size:Transmitter 75x51x20mm, Receiver 95x65x24mm. NOTE: The button cannot be placed on an iron door because it will interfere with the signal. How to modify and lock music? Press and hold the volume button of the receiver before plugging in the power socket. Plug in the power socket until the light of the receiver lights up, release the volume button, press the music button to adjust to the favorite music ringtone, press and hold The volume button again until when the light is on, press the transmitter twice immediately and the music is locked successfully. How to pair signals 1.Pairing method: press and hold the volume button on the receiver for about 5 seconds (the light is on), release the volume button, then press the button immediately, the signal is successfully paired. Warm reminder: This product is free from obstacles and straight-line remote control distance is not less than 300 meters. It can meet the needs of different family environments. The general family has no problem with security doors and several walls. Feature 1: Anti-interference will not appear stringing. Feature 2: Receiver Smart Flash Feature 3: Receive signals over long distances. Feature 4: Adjustable volume and music installation is easy to use (default D D D) 3 volume adjustable 38 music optional