Melody Musical Sound Cordless Wireless Intelligent Doorbell Remote Control Long Range Digital Receiver Doorbell Calling Bell for Home with LED Indicator 38 Songs

Simple operation, Easy to install Remote control range is up to 120 meters in open air Build in speaker makes clear sound with 38 polyphony sounds choices Volume regulate: three volume can choice, Use the External switch (or button) to finish. Wireless door bell for your convenience Simple, vivid and no-wire installation design avoids troubles Saves money when in installation and don't effect decorate environment LED indicator and adjustable volume for your preference Transmitter powered by 1 x 23A battery (included)