Features:
360-degree panoramic sound for an immersive listening experience.
TWS true wireless technology for surround stereo sound.
Large moving coil and loud volume for clear audio even in noisy environments.
ENC dual microphone noise reduction for crystal clear calls.
CVC8.0 intelligent noise reduction core to eliminate call noise and restore high-definition voice calls.
Double independent adjustment shafts and soft silicone ear hooks for a comfortable and adjustable fit.
Memory pairing and automatic reconnection for hassle-free use.
Multi-function button for easy and convenient operation.

Specifications:
Bluetooth Version: V5.1 Edr
Wireless Frequency: 2.4Ghz
Support Protocol: A2Dp1.3/Hfp1.6/Hsp1.2/Avrcp1.6/D11.3
Transmission Distance: 10 Meters (32.8 Feet)
Battery Capacity: Earphone - 50 mah , Charging Case - 400 mah
Charging Voltage/Current: 5V/1A
Speaker Impedance: 8 mm 32
Microphone Sensitivity: -42Db
Weight: Earphone - 12.5G, Charging Case - 78G

Package Includes:
1 x 520 Gen2 Earhook Business Bluetooth Headphone