This is a function of smart noise reduction ears hanging bluetooth headset, it can receive from mobile phone, notebook, computer or other bluetooth stereo audio, built-in powerful voice prompt function operation.Bluetooth headset can with other bluetooth devices in about 10 meters(33 feets) of distance communication.Those bluetooth headphones are up to 6 hours talk time / music time (The headphones playtime varies according to volume level and au.....More detail
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