1. Bluetooth specification: 5.0 2. Chip version: JL AC6956 3. Supported protocols: Headset Hands-free A2DP AVRCP 4. Frequency range: 50Hz-20000Hz 5. Input voltage: DC 5V 6. Interface: 3.5mm 7. Total cable length: 1m 8. Weight: 11g 9. Spring retractable cable design, easy to store and wind, easy to use 10. Plug and play, simple and convenient operation
