Sencor Casti fara fir Bluetooth Sencor,Unitate driver: Ø 10 mm Impedanta: 16 Ω +/- 10 % Gama de frecventa: 20 Hz - 20 kHz Sensibilitate: 100 dB +/- 3 dB /1 mW (SPL la 1 KHz) Sensibilitate microfon: -42 dB±3dB Baterie : 3,7V 50mAh Li-ion; Baza 3,7V 400 m