WK Design BD520 Rhythm Series Wireless Bluetooth Earphone With Built-In HD Voice Microphone
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- Model – BD520
- Transmit Power – Class 2 (6dbm+-4dbm)
- Working Frequency Band – 2.4g ISM Band
- Charging Voltage – 5V
- Working Voltage – 3.7V
- Weight – About 21.5g
- Frequency Range– 50-10KHZ
- Rated Output Power-3MW
- Maximum Output Power – 5MW
- USB – Micro USB Charging interface
- Support – Handset/ Handfree / A2DP/AVRCP
- Bluetooth distance – 10 meters
- Battery – 80mAh Polymer Lithium-ion Battery
- Talk duration – about 6 hours at 60% Volume
- Standby Time – 200 hours
- Can Display HeadPhone Power On iPhone.
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