Features and specifications
1.The button supports up to 8 PCS, and the receiver supports up to 100pcs. 2.The transmitter has no screw chuck design, and it can be waterproof and dustproof without rubber ring.3.If multiple buttons are paired with one or more receivers in the same system, each button can be set to a different ringtone.4. Power-off memory function: Turn the power on again after power off, no need to re-adjust and lock the ringtone.5.Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf, and pregnant women. 6.Uses machine-learning to prevent interference from other wireless transmitters. 7.The transmitter USE a 23A12V alkaline battery (not include battery). 8.The receiver is available in a variety of plugs, US/EU/UK Plug and AU adapters, suitable for most countries.9.Receiving distance:300 meters in open area 10.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss.11.Receiver has 4 levels(can be mute) 0-80db,38 music to choose from.12.Size:Transmitter:77x46x20mm,Receiver:90x56x20mmNOTE: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?
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 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.
About shippingShipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). Special Announcement:Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .Your 100% satisfaction is very important to usIf the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.