1byone O00QH-0008 Bubble Machine Power Adapter, 5.7 x 4.7 x 1.9 inches, White

What's in the Package
The door chime kit comes with:
1 x Receiver
1 x Transmitter
1 x 3 volts CR2032 battery for transmitter
3 x Wall Plugs
3 x Screws
1 x Instruction Manual

Functions Instruction
1.Door Chime Operation
Press the push button on the Transmitter unit once, it sends a wireless signal to the Receiver which will sound.
2.Melody Selection
There is a melody selector located at side of the receiver. Press the selector to change different melody.
3.Volume Adjustment
There is a volume button under the melody selector. Press it to adjust the sound volume to be different levels. There are 6 volume levels in total.
4.Sound and Flash
There is a Sound and Flash Button under the volume button. Press this button for three options, working only with sound, only LED flash, sound and LED flash.
5.Auto-learning Code Button
There is an auto-learning code button at side of the receiver. If user wants an additional Transmitter to work with the Receiver, he or she needs to press the auto-learning code button once and the Transmitter can work with the Receiver.
6.Nameplate
There is a nameplate position on the Transmitter.

Specification
A. Transmitter unit
Power: 1 x 3volts CR2032 battery(included)
B. Receiver unit
Power: 3 x 1.5 volts AA alkaline batteries(not included)
Operating Temperature: -30¡ãC to +40¡ãC
Operating Distance: 100meters in the open field(328ft approx.-in open field and suitable conditions)
Selectable Tone: 16 Polyphonic Melodies
Digital Code Type: Auto-learning