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- Bluetooth version: Bluetooth v4.1 + EDR
- Power Level: CLASS II
- Output Power: 30mW
- Bluetooth range: 10 meter (30 ft)
- Frequency response: 20-20000 Hz
- Operating voltage range: 3.0V-4.2V
- Microphone sensitivity: -42dB
- with A2DP / AVRCP high-quality stereo audio transmission and remote control protocol
- Powerful noise noise cancellation circuit (Active Noise Reduction)
- Wired and Bluetooth automatically switch to support audio input
- Charging time: about 1 hour (power indicator Charging: blue light on, fully charged: blue light off)
- Dimensions: Diameter length 20MM. Width 15MM. Height 18mm
- Talk time: About 4 hours
- Music: about 3 hours
- Standby time: 3-4 days
- Charging Power: DC5V Power Interface computer USB port, mobile phone charger, car charger)
- Compatible: Compatible with Android, Apple, Microsoft, Symbian 99% of with Bluetooth cell phones(IOS cell phone has power display)
- 1 Bluetooth Earphone
- 1 USB Charging Cable