1、[100m Remote Control] The remote control range can arrive 100 meters, which is safe and stable in performance, so you can use it with confidence. 2、[Simple To Install] The plug in design, which is simple and convenient to use, and it is easy to install with double sided tape and screws. 3、[36 Kinds Of Ringtones] There are 36 kinds of ringtones for you to choose, and with low crosstalk rate, so you can use it with confidence. 4、[Waterproof Design] Wireless remote control doorbell has a waterproof design, so you don't have to worry about rainy days when you install it outdoors. 5、[Widely Application] This wireless music doorbell is widely used in many situations, such as bedrooms, courtyards, offices, hotels, etc. 1 x Receiver (Battery Not Included)1 x Launcher2 x Screw1 x Double Sided Tape1 x Manual Item Type: Music DoorbellReceiver Size: Approx. 9.5 x 6 cm / 3.7 x 2.4 inLauncher Size: Approx. 8.4 x 6 cm / 3.3 x 2.4 inVoltage: EU plug 180-250VBattery: 1 section x 23A 12V (Battery Not Included)Power: 2WMusic: 36 music to chooseSound: 25-80dB (4 levels of volume)Remote Control Distance: Approx. 100m / 328.1ft (open air)Working Frequency: 315MHzMaterial: ABSApplication: Very suitable for backyards, bedroomsWeight: Approx. 134g / 4.7oz