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Product specifications:

 Bluetooth Version: V4.1

Sound Mode: Stereo

Chip: CSR

Charging time: 2 Hours

Standby time:120 Hours

Talk/Playing time:5 hours

Operation distance:10 Meters

Connect 2 phones: Yes

Power Source: Built in Rechargeable Battery

Weight 15g

 Functions:

 Volume up

Volume down

Playback/Previous

Lowe Battery Warning

Answer/End/Reject Call

Transfer call voice

Connect 2 devices at same time

Transfer calls between 2 mobile phones

Replay the phone

Mute

Default setting

Turn off voice notifications

Turn on voice notification

 Tips:

 Short press of "+" to the previous song

Long press of "+" to turn up the volume

Short press of "-" to the next song

Long press of "-" to turn down the volume

 Package includes:

 1 sport bluetooth headset

1 Usb charger cable

2 sets extra sized earbuds smaller and larger