CACAZI Waterproof Wireless Doorbell Set for Smart Home Long Distance Outdoor 36 Songs LED Flashing Powered by US EU UK AU Plug

High-concerned chemical：nonePower Source：Battery,ACModel Number：A20Doorbell Type：WireLessOrigin：Mainland ChinaCertification：CE,FCCType：Doorbells .product-description {position: ;max-width: 944.0px;overflow: hidden;} .product-description span {max-width: 100.0%;word-break: break-word;} .product-description img {max-width: 100.0%;vertical-align: middle;} .product-description p {margin: 0;line-height: inherit;} .product-description pre {white-space: pre;white-space: pre-wrap;word-wrap: break-word;} .product-description .video-container-detail {justify-content: center;align-items: center;} .product-description div {} .product-description ul {list-style-type: disc;} .product-description ol {list-style-type: decimal;} .product-description ul, .product-description ol {margin-block-start: 1.0em;margin-block-end: 1.0em;margin-inline-start: 0.0px;margin-inline-end: 0.0px;padding-inline-start: 40.0px;} 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: 110-220V.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 4 levels 20-80db,36 music to choose from.11.Size:Transmitter 77x46x20mm,Receiver 90x56x20mm.NOTE:The button cannot be placed on an iron door because it will interfere with the signal. How to pair signals? 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. How to modify and lock music? Plug in the power socket, press the music button to adjust to the favorite music ringtone, press and hold the volume button until When the light is on, press the transmitter twice immediately and the music is locked successfully. How to solve if the work is not normal,When receiving the goods? 1. Try pairing signals first.2. Please contact us, we will send a video to help you.3. If there is a problem with the product, we will re-send the receiver or button to you.