A9 Pro Smart Touch Screen Wireless Earbuds

Description Bluetooth Multi-point Noise Cancellation Volume Control HD Voice Wireless Waterproof Rechargeable Battery   Model: A9 pro Connectivity： Bluetooth Type： Earbud (In Ear) Version: 5.4 [binaural call] Transmission distance: 15M [barrier-free] Response frequency: 20～20000Hz Charging time: 1h Headset working time: the measured 100% volume plays continuously for about 4-5 hours