Product information:

Type: Earplugs
Headphone type: in-ear headphones
Wearing style: behind the head
Plug diameter: 3.5mm
Plug type: in-line type
Whether wireless headset: wireless headset
Sensitivity: 40 (dB)
Distortion rate: 10 (%)
Horn diameter: 40 (Φmm)
Colors: White, Black
Bluetooth version: Bluetooth V5.0
Communication distance: 10m
Life time (with charging box): 300 hours
Headphone button: key touch control
Battery capacity: 300mAh
Applicable scope: 40mAh

Packing list :

In ear headphones*1