Logitech H600 Wireless Rotating Portable Headset with Microphone

Main Features 2.4GHz wireless connection with simple integrated control Get rid of background noise and enjoy clear conversations The battery can be used continuously for 6 hours Folding design to carry easilySpecifications- Input impedance 32 ohms- Headphone sensitivity 102dB -3dB- Microphone sensitivity -44dBV Pa - 3dB- Headphone microphone frequency response 40Hz - 10KHz- Microphone frequency response 100Hz - 6.5KHz- Battery built-in 60mAh Li-ion battery- Use time 6h- Charging time 3h- Compatible system Windows mac OS Chrome OS USB port etc. 0.300 Product size 18.00 x 21.50 x 7.80 cm 7.09 x 8.46 x 3.07 inches Package weight 0.340 kg Package size 22.00 x 15.00 x 10.00 cm 8.66 x 5.91 x 3.94 inches Package Contents 1 x Headset 1 x Receiver 1 x USB Cable 1 x English and Chinese Manual