Product Information：
1: Diameter 89MM, height 40MM Battery: AAAX2=3V
2: Speaker. 40MM plastic 0.25W European plastic ABS material environmentally friendly+
3: The sound source and seconds are customized according to the customer. 10 seconds, 20 seconds, 30 seconds, and 60 seconds ..
4: Usage method Press the button once to play the music selected by the customer
Packing list：
8PC*Speaker
