Specifications: 1) Small solidity and convenient to take 2) Widely used, compatible with MP3 players, computers, mini VCD, DVD, CD players and walkmans 3) Rechargeable 4) Max. discharge time can reach to 8h 5) Max. power: 300mW 6) Loudspeaker diameter: ?26mm 7) Frequency response: 20Hz - 20kHz 8) Sensitivity: 105dB±2dB...