JBT-101 is a 2.4 G wireless headset designed to work with smartphones, portable audio players.  

• Comfortable over-ear size for long time usage; foldable earcups for easy carrying and storage when traveling. 
• Effective 40 mm drivers reproduce powerful acoustic performance. 
• The built-in USB type C port is for power charging, and a 3.5 jack for wired audio connection when the headset’s power is low.

Specification:

• Type：Close back
• Driver：40 mm
• Sensitivity：95dB ± 3 dB
• Impedance：32 Ω ± 15%
• Frequency response：20 Hz – 20 kHz
• Wireless Technology：2.4G
• TYPE-C port for charging only
• 3.5 mm jack for WIRED connection