A3 Graphene Neckband Stereo Wireless Bluetooth Earphone Sport Long Standby Time - Black

• 5.4mm graphene microphone  

• Ergonomic design, comfortable wearing 

• Waterproof, can be used outdoors

• 260mAh battery, 20 hours using

• With battery display function 

• Work with Mobile phone/tablet/PC and other device with Bluetooth function (You need a Bluetooth adapter for computers without Bluetooth function)

Specification:

• Model: A3

• Material: ABS 

• Bluetooth: V5.0+EDR

• Bluetooth chip: Taiwan Roda 1522U 

• Battery Capacity: 260mAh

• Connection: Wireless

• Wearing method: Neckband 

• Mic sensitivity: -42dBV/Pa

• Frequency range: 10Hz-22kHz

• Driver size: 5.4mm

• Driver sensitivity: 100dB/1kHz1mW

• Max SPL: 115dB

• Noise reduction function: CVC intelligent noise reduction

• Waterproof: IPX5

• Channel: 2-channel stereo

• Speaker: 6MM*2 vinyl dynamic ring

• Battery display: center control with battery display 

• Play time: max 20 hours

• Call time: max 25 hours

• Standby time: 150 days or more

• Charging time: about 1.5 hours

• Operating distance: 10m barrier-free

• Impedance: 16 ohms

• Weight: about 19g

Compatible with:

• Mobile phone/tablet/PC and other device with Bluetooth function (You need a Bluetooth adapter for computers without Bluetooth function)