Wireless neck-worn headset

Function: Support music
Headphone material: silicone + plastic (ABS) + hardware + iron absorption (N35)
Channel: 2
Bluetooth version: 4.1
Package type: official standard
How to use: earplug type
Transmission radius: 10m
Whether single or dual ear: bilateral stereo
Standby time: 300 days
Transmission radius: 10m