Brand: Marvel
Transmission range: 10 meters
Function: wireless charging, noise reduction, call function, NFC function, voice control, support music, multi-point connection
Bluetooth protocol: 5.0
Channel: Stereo
How to use: earplugs
Whether single ear or double ear: bilateral stereo
Color: Red (Iron Man), Black (Black Panther), Blue (Captain America)
Battery life: 24 (hours)