| 1.voltage supply:4.8V~6.0V 2.power adapter standard : AC 100v~240v / 50Hz/ 60 Hz DC 6V/ 1A 3.battery description:"AA" (1.5v) x 4 alkaline battery; "AA"(1.25V)x4 4.Input battery:0~0.8V, Output power:2.0W x 2 , SNR:85dB,frequency¡G130-20K Hz 5.product size: unwrap285(L)x80(H)(mm) ; fold:130(L)x80(H)X43(T) (mm)
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