Features: - Using the advanced Bluetooth chipset V4.1
- High sensitivity microphone to ensure high quality calling
- Noising canceling chip integrated
- Innovative bullet design
- Wide application ranges such as cars, speakers, headphones, etc.
- Built-in Li-ion battery

Notes:
- Do not put this apparatus near water
- Please stay away from fire to avoid accidents
- Do not charge the device with above 5.5V power supply
- Clean it with dry clothes

Technical Parameters:
- Bluetooth version: Bluetooth 4.1
- Charging voltage: DC 5V
- Charging time: 2 hours
- Working time: 5 hours
- Net weight: 7g
- Battery capacity: 55mAh
- Mic sensitivity: -48dB
- Effective range: 10m Package weight: 0.102 kg
Package Size(L x W x H): 7.50 x 7.50 x 4.00 cm / 2.95 x 2.95 x 1.57 inches Package Contents: 1 x Bluetooth Receiver, 1 x Micro USB Charging Cable, 1 x Bilingual Manual in Chinese and English