1. Bluetooth version: V4.0+EDR 2. Frequency range: 2.4026GHz-2.480GHz 3. Transmission distance: 10M (The transmission distance is different due to environmental factors and mobile Bluetooth devices) 4. MIC distance: less than or equal to 1 meter 5. Lithium battery: 3.7V/500mA 6. Charging time: 4-5 hours 7. Standby time: about 180 hours 8. Continuous working time: about 32 hours 9. Function and scope: listen to music. Answer incoming calls. Voice guidance. Voice call.
