The stereo headset is retractable， convenient to storage and with External Audio Line function， you can use it as ordinary earphone in computer and phone(without Bluetooth function).

Features:
You must connect your phone with Bluetooth.
The product with microphone， convenient to use.
The string of headset is retractable， fit different people.
With External Audio Line function， you can use it as ordinary earphone in computer and phone(without Bluetooth function).
With Volume key and Pause key， convenient to use.
Made of high quality material， durable.
Support TF card， you can get different music.(≤16G Without TF Card)
It is 90°rotation， convenient to storage.
It has high quality sound， enjoy your life.

Specifications:
Model: D400
Material: ABS
Color: Black
Bluetooth: 4.0
Output Frequency: 20Hz-20KHz
Rnage of wireless connection: 10m
Battery: 300mAh
Talk time: 6 hours
Item weight: Approx. 147g / 5.18oz
Package size: Approx. 21 * 18 * 3.3cm / 8.3 * 7.1 * 1.3in
Package weight: Approx. 216g / 7.61b

Package including:
1 * Bluetooth headset
1 * USB cable