LONG-DISTANCE TRANSMISSIONStrong signal penetration, long-distance transmission, can be used in office buildings, homes, shops, factories and other occasions.WORKING PRINCIPLEThe transmitter is installed outside the door, the receiver is installed on the power socket, press the transmitter to ring the bell, and the receiver immediately rings the bell and lights up to remind.LOUD VOICEThere are 36 ringtones to choose from, four levels of volume adjustment, which can be adjusted to mute to meet different needs.PLUG AND PLAYThe outside transmitter is pasted on the wall, and the indoor receiver can be used after plugging in, no wiring, plug and play.MULTIPURPOSE USEIt can be used as a doorbell, so that the melodious ringtone can replace the knocking sound, and it can be used as a pager, which is convenient for the elderly and pregnant women to call for help.WATERPROOF DESIGNThe transmitter adopts a waterproof design, which can prevent the intrusion of rainwater and is suitable for outdoor use.DURABLE TO USEThe button bell is molded, non-ink printed, the color will not fade when pressed, and it is more durable, can be used for a long time.Transmitter installation method:Punch free installation:1. Peel off 1 side of the double-sided tape and stick it on the bottom of the transmitter2. Tear off the other side of the double-sided tape and stick it on the outer wall of the door3. Warm reminder: After the double-sided tape is pasted on the wall, do not let go, press and hold the transmitter for 30 seconds, and then release it. (It is more firmly attached to the wall)Screw installation:1. Align the opening with a flathead screwdriver and pry the bottom case open2. Put the opened bottom case against a fixed position, use screws to screw in the reserved screw space and then cover the panelSpecification:Material: plasticColor: black gold, gold, silverTransmitter size(approx): 46 x 20 x 76mm/1.81 x 0.79 x 2.99inch(length x width x height)Receiver size(approx): 59 x 25 x 91mm/2.32 x 0.98 x 3.58inch(length x width x height)Volume gear: four gear adjustment (mute can be set)Music selection: 36 piecesTransmitter: with indicator light, press the light to turn onTransmitter battery: built-in 12V 23A batteryReceiver: Just plug it in, the bell rings and the light is onReceiver voltage: AC110-240VWorking range: 300 meters in a straight line on the open groundScope of use: office buildings, homes, shops, factories, etc.Package:1 pc x receiver1 pc x launcher1 pc x double sided tape2 pcs x screws1 pc x doorbell stickerNote:1. Due to the light and screen difference, the item 039;s color may be slightly different from the pictures.2. Please allow 0.5-2 cm differences due to manual measurement.