boAt has launched two affordable wireless headphones in its Rockerz series. The boAt Rockerz 450 comes with Bluetooth V4.2 and 300mAh Rechargeable Lithium Battery that gives up to 8 hours of play-time and 300-400 hours of standby time. The boAt Rockerz 640 is powered by a similar 300mAH rechargeable battery, and is claimed to deliver up to 12 hours of playback time.
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