Fineblue F990 CVC6.0 Auricolare Bluetooth Lavalier con riduzione del rumore, supporto promemoria vibrazione (nero)

Features: 1. The unique design of the earpiece telescopic cable function is more convenient, and there is no need to put the earphone in the ear for a long time 2. Vibration reminder function for incoming calls 3. Intelligent voice reminder, caller number 4. Chinese and English bilingual switching 5. IOS displays the power of the headset 6. One for two, can connect two mobile phones at the same time Product Specifications: 1. Chip model: 3015 2. Bluetooth version: V5.0 3. Communication distance: 10m 4. Transmission frequency: Class2 5. Charging voltage: DC 5V 6. Working voltage: 3.7V 7. Battery specification: 100mAh 8. Charging time: about 2 hours 9. Listening time: about 10 hours 10. Talk time: about 12 hours 11. Standby time: about 180 hours