Bluetooth version: Bluetooth V4.0

Transmission range: 10m

Frequency range: 2.402GHz-2.480GHZ

Wireless transmitter standard: Class 2

Frequency response: 20Hz-20KHz

SNR: 85dB

Battery: 3.7V / 60mAH

Talking time: About 4 hours

Listen music: About 3 hours

Standby time: About 3-5 days

Charge time: About 1 hour

Color: Black,White,skin color

Item size: 20 * 25mm / 0.8 * 1.0in (D*L)

Item weight: 4g

Instructions:

1 Long time press earphone button more than 5seconds

2 You will see red and blue light flashingalternately

3 Then connect your bluetooth, and useearphone

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