Bluetooth Beanie Hat Portable Soft Warm Knitting Slouchy Uni Fitness Headset with Earphones Built-in Microphone Speaker Wireless music for outdoor sp
- Full-duplex high-quality call, callback: automatic Bluetooth answering, two-way intercom, double-click play callback.
- Play music on-line: After the phone is connected to Bluetooth, press the middle play button directly to automatically open the music play.
- Bluetooth one-to-two function: After connecting Bluetooth, you can connect two mobile phones simultaneously.
- Bluetooth camera function: After turning on the phone camera, double-click the volume + to take a photo with Bluetooth.
- Volume addition and subtraction: Press and hold the volume -, decrease the volume, press and hold the volume +, increase the volume.
