Features:

Wireless battery operated doorbell system of 1 transmitter and 1 receivers. Both the Transmitter and Receiver are battery operated. Creative, waterproof design. Prevent rainwater infiltration which prolong service life. 36 chimes included: Pick one you like from modern to old fashioned chimes. Loud enough to hear at any of the 4 levels of volume and low enough so it won't disturb any sleeping children. Remote control range up to 100 meters in the open air, suitable for homes and high-rise building. High quality ABS material, green environmental protection. Wireless installation, easy and convenient. Setup literally within minutes of opening the packaging and is suitable for long range in any home or business. Easy to install with the double side adhesive tape and the screws. Suitable for any house, office and many more areas.

Specifications:

Receiver: Voltage: DC, 4.5V(3 *AAA batteries, not included) Working current: ≤80mA Static current: ≦0.8mA Power: ≤2W Work frequency: 315MHz Music: 36 chimes for option Volume: 25-80dB Receiving distance: ≧100m(Open field) Transmitter: Voltage: 12V(battery:23A 12V, not included) Current:≤15mA (If 20 times one day, the battery can last 1 year) LED indicator: Press the launch button, LED indicator light will flash, the transmitter begin working. Meanwhile, the receiver receive the signal and beautiful music produced, remind you with a VIP visit. The blue-ray LED of the receiver will regular flash along with the music. Temperature: -10℃~50℃. Rainproof: Yes, the doorbell can be installed outside the gate. Product dimensions: Receiver: 10 * 5.8 * 2.8cm / 3.9 * 2.3 * 1.1in Transmitter: 8.1 * 4.5 * 2.3cm / 3.2 * 1.8 * 0.8in Product weight: Receiver: 62g / 2.2oz Transmitter: 27g / 0.95oz Package size: 10.3 * 6.3 * 7.8cm / 4.1 * 2.6 * 3.1in Package weight: 204g / 7.19oz

Package List:

1 * Transmitter 1 * Receivers 1 * Double Faced Adhesive Tape 2 * Screws 1 * User Manual(English)