Wireless Digital Sensing Doorbell Chime Kit With 2 Remote control button and 1 wireless doorbell Receiver Transmitter, 36 Music Tune , battery included. (1 receiver and 2 buttons) ZJ. 100% brand new and high quality. 36 Songs Wireless Musical Doorbells w/ Remote Control. Package included the 2 x23A Battery power for remove control . Unique design,while the doorbell rings the indicator flashes as well. Press the remote control button to trigger the wireless receiver doorbell to chime.