Wireless Bluetooth V4.0 in-ear headphones featuring CVS 6.0 noise cancelling, multi-connection function for connecting two devices at the same time, voice control and a microphone. Thanks to its weight only 10g, they are the ideal companion for your everyday sport activities. The headphones has an english voice prompt to tell you low power, disconnection, calling number, far connection distance. The headphones are able to transfer high-fidelity stereo music and clear speech within 10 meters. The frequency response is 20Hz – 20kHz with the impedance of 16 ohms and the sensitivity 110 dB. The cable length is 0,6m and it allows you to switch the songs and answeting the phone. After the 1 hour charging time the headphones are able to operate for 200 hours in a standby mode, 4 hours of music time and 6 hours talk time. The package contains the headphones, USB chargin cable, cable clamp, 2 pairs of earbuds and a pair of ear hook. The headphones are compatible with all the devices, supporting the bluetooth V4.0. Colour: black.