Bluetooth version: v3.0 Rated power¡êo3w 4|¸ Snr¡êo¡y95db Frequency range¡êo18hz~20khz Material¡êoaluminum alloy + plastic Charging voltage: dc 5v Charging port: usb Size/pcs¡êo65*53mm N.W./g.W.(kgs/pcs): 0.209kg/0.333kg Packing: 1pcs/paper box 50pcs/ctn N.W./g.W.(kgs/ctn): 16.65kgs/17.60kgs Carton size: 39.8*23.7*36cm
