GZ electronics GZ-44 Guia Del Usuario página 10

Specification
• Speaker output: 2*3 W;
• Sensibility: 800 mV;
• Frequency Response: 40 Hz – 19 KHz;
• Signal/noise ratio: > 50 dB;
• Stereo isolation: > 40 dB;
• Charging voltage/current: 5 V DC, 800 mA;
• Battery: Li-pol, 1800 mAh, 3.7 V;
• Playback time: ~8 hours;
• Charging time: ~4 hours;
• Bluetooth version: 2.1;
• Working distance: up to 15 m.
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