• USB, Bluetooth
• NFC connections for laptops, phones, and tablets
• Rechargeable battery for up to 10-hour use
• (or longer with USB)
• Headphone jack for private listening
• Ability to listen to music between calls
• Adaptive echo cancellation
• Ultra-wideband audio
• Available in black or white

Specification : 

Wireless Connectivity : Bluetooth and NFC
Wired Connectivity : 1 x USB , 1 x 3.5 mm headphone output
Microphones : Built-in with 360° coverage
Rechargeable Battery : Up to 10 hours use over Bluetooth