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Overview For HTC, Bluetooth Earmuffs provide cotton blend construction that is both fashionable and warm in cold weather. With a built-in lithium-ion battery and a USB charging option, these earmuffs also allow you to talk on the phone directly through your audio device and answer speakerphone calls, delivering long standby time and convenience on-the-go.
Specification Product Specifications: Bluetooth version: V3.0 + EDR Frequency: 2.4026GHz-2.480GHz Transmission distance: 30 feet or less MICROPHONE transmission distance: ≤ 2m Lithium-ion battery: 3.7V / 120mA Charging time: 2.5 hours Standby time: 60 hours Continuous working time: about 4 hours
