Features:
2.4GHz Wireless Connection:
Supports 2.4GHz wireless connection, with USB receiver, no driver needed, plug and play, supporting up to 10 meters of wireless transmission distance.
Multi-purpose Headphones:
Fits for making office business conference calls, call center phone calls, online courses, language learning, playing games, listening to music, etc.
Noise Canceling Microphone:
External 180° rotary microphone with ENC noise reduction technology reduces environmental sound, enhances human voice, ideal for clear conversation.
Ergonomic Design:
Lightweight design, adjustable headband length, soft ear pad provide maximum wearing comfort, suitable for different head size wearing.
Long Battery Life:
Built-in rechargeable 300mAh lithium battery, 2 hours charging, can provide 20-40 hours of listening time and standby time is about 100 hours.

Specifications:
Frequency Range: 2.402GHz-2.480GHz
Operation Range: 10 meters
Frequency Response: 20-20KHz
Sensitivity: 108±3dB
Impedance: 40mm, 32Ω, 20mW
Battery Capacity: 3.7V 300mAh
Working Time: 20-40 hours
Standby Time: about 100 hours
Charging Time: 1-2 hours
Color: Black
Package Size: 22*16*7cm/8.7*6.3*2.8in
Package Weight: 220g/7.7oz

Package List:
1 * On-Ear Headset
1 * USB Receiver
1 * Charging Cable
1 * User Manual (English)