VMPS-912 speaker available in different shapes, OEM orders are welcome.
Size (W x H x D): 13.2 x 14.5 x 5.0cm
Power supply: battery (AAA 1.5V x 2), DC 3V (output 3V, 300 to 800mA)
Output power: 3W x 1, 4 ohms (1kHz 10% THD)
Frequency response: 275Hz to 20kHz
OEM orders are welcome ...