Touch digital display F9 wireless Bluetooth headset tws5.1 $ 10.92 Number: F9 touch display cold control Transmission range: 10 meters Function: battery display, call function, NFC function, voice control, support music, multi-point connection Custom processing: Yes Print LOGO: Yes Bluetooth protocol: 5.1 Channel: stereo How to use: Earplug type Single or dual ear: bilateral stereo
