V9S Bluetooth-compatible Single-Ear (Monaural) Headset Business Style LED Display Wireless Headphone Earphone with Battery Charging Case - Blue

• With advanced noise reduction technology, it blocks out disruptive background noise like wind, traffic or crowds, offers crystal clear audio and natural sound, allows you to enjoy high-quality music and clear phone calls wherever
• Adopts the latest version of Bluetooth-compatible version, provides more stable connection for up to 10m away
• Rotation design, easy to adjust the angle for meeting your needs
• The charging case for convenient charging on the go
• Waterproof design efficiently protects the Bluetooth-compatible headset from sweat caused by fitness 
• The LED digital display on the headset for the remaining battery of the charging case
• Perfect for the office, home, remote working, calls, Skype, etc

Specification:

• Bluetooth-compatible version: 5.2
• Bluetooth-compatible distance: about 10m
• Charging time: 2h
• Working time: 68h
• Headphone battery: 300mAh
• Charging compartment battery: 2200mAh
• Supported protocols: HEP\HSP\A2D\AVRCP
• Process material: ABS + electroplating + food-grade silicone ear caps
• Frequency: 20Hz-20KHz
• Impedance: 32 ohms
• Sensitivity: 85dB/mW
• Waterproof grade: IPX5