供应魔御天方头戴式 插卡耳机 无线耳机 FM 插卡MP3耳机

头戴式插卡耳机，带FM， 多种播放模式**的锂电池，重低音

带LINE-IN接口，可以作为一般耳机使用

Speaker diameter: Φ40 milimeters
Impedance: 32 Ohms
Sensitivity: 108dB S. P. L. At 1kHz;
Rated power: 20mW
Aggregate capability: 50mW
Frequency Response: 20Hz-20, 000Hz
Microphone Unit: Φ6*5mm
Impedance: ≤2.2KOhms
Frequancy Response: 30Hz-16, 000Hz
Operating voltage: 4.5V
Description2.4GHz wirless Bluetooth headset
1)Electric current(mA)47mA50mA
2)Frequency range(GHz)2.404~2.4762.404~2.476
3)Baud rate(BPS)Typ: 4M Typ: 4M
4)Avaiable range(m)≥10
5)Transmit power(dBm)73
6)Receiver's sensitivity(dBm)-80-80
7)Speaker sampling rate(kHz)44.1kHz, 16bit
8)S/N ratioAudio-SNR@1kHz=-80dB Mic-SNR@1kHz=-80dB
9)Charger power: Computer USB interface DC5V; DC5V(500mA);
Travel charger; DC 5V (500mA)car charger
10)Successive working time: about 8 hours;
11)Battery: Rechargeable lithium-ion polymer battery (3.7V/320mA/h)