【ENC Passive Noise Shield】Earbay Bluetooth headphone is engineered with ENC Noise Cancellation to provide you a high-quality communication by blocking out 99.6% of background noise automatically. 【USB Dongle & Multipoint Connectivity】The USB Dongle (Included) of this bluetooth headphones with microphone can connect with non-Bluetooth devices, no transmission delay with wireless range up to 33ft/10m.
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