Portable and foldable style with very smart and slim size; Built-in 40mm mylar speaker;
Specification:
1)Frequency range :2.4G-2.48GHz 2)Modulation / demodulator way:GFSK3)Transmitting power:0 dBm4) Frequency response :20Hz-15KHz 5) Separation >70dB 6)Distortion:1%7)S/N Ratio:> 70dB 8)Power:Built-in chargeable 150mAH lithium battery9)working:5 hours