Bluetooth Version: V5.4 (7018M)

Control Chip: JL7018M

Bluetooth Reception Range: 10-15 meters

Speaker Specifications: 40mm dedicated external speaker

Battery:  1200mAh 

Play Time (External Speaker): 5 hours

Play Time (Headphones): 50 hours

Charging Time: About 4 hours

Finish: Exterior Metallic Paint/Pearlescent Paint

*Protein ear muffs, soft and comfortable.

*Supports Bluetooth / Aux / radio / external speaker.

*The headphones automatically switch to external speaker when flipped outward.