General
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| Dimension | （Ø）120 x（h）28mm |
| Weight | 220 g / 7.76 oz |
| Connectivity | USB 2.0 & Bluetooth |
| USB Cable Length | 2.6 feet / 0.8 meter |
| Bracket | √ |
| | |
| Wireless Technology | |
| Bluetooth standard | Bluetooth 4.0 |
| Wireless Range | 100 feet / 30 meters |
| Supported Bluetooth profiles | Hands free profile v1.7, A2DP v1.2, AVRCP v1.3 |
| PC USB Bluetooth dongle(Yealink BT50) | USB BT audio device/HID dongle. Bluetooth 5.0 |
| | |
| Battery | |
| Battery | Lithium Polymer |
| Battery capacit | 1420mAh |
| Charging power & time | 5V / 500mA，Charging time 3 hours |
| Talk time | 9 Hours |
| Standby time | Standby 360 days, Power safe after 30min |
| | |
| Microphone | |
| Type | 2 x Omni-microphone |
| Pickup range | 5 feet / 1.5 meters |
| Frequency range - Conference mode | 100Hz-8kHz |
| | |
| Audio Features | |
| Wideband Audio/HD Voice | √ |
| Audio duplex | √ |
| Noise suppression (NS) | √ |
| Digital Signal Processing (DSP) | √ |
| Acoustic echo cancellation (AEC) | √ |
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