USB/SD Card Reader Speaker for mobile phone... Nokia/Moto/Samsung Mobile phone dock Power supply by lithium battery
Specifications Number of speakers: 2 micro drivers housed in a single speaker unit
Power Output3W stereo THD=10% Respond frequency: 120-18000Hz(3dB) S/N ratio85dB Channel separation40dB Speaker impedance4 OHM 2W Power sourcePower by lithium battery Packing information 1PCS/BlisterPCS/Carton Product net weightg N.W.KG G.W.KG the size of the gift box78mm the size of the cartoncm 20'pcs 40'pcs 40H' :pcs