What's in the box:

4 in 1 Wirelessly BT Stereo Headphone Over-Ear / On-Ear FM Radio MP3 Player 3.5mm Aux In Earphone with Noise Reduction Microphone (Black And Blue)

Features:
With 3.5mm audio jack, it can connect to a variety of music players, such as, MP3, FM radio, etc.
Hands-free calling, high-sensitive microphone reduce ambient noise and grasp the detail of voice, offering quality hands-free phone conversation.
Built-in rechargeable 300mAh Lithium-battery, long duration time.
Adjustable headband length, soft ear cushion for maximum wearing comfort, suitable for different heads size wearing.
Ergonomic design, adopt soft breathable earmuffs, heads pad and adjustable headband to ensure comfortable wearing.
Suitable for laptop, smartphone, tablets and 3.5mm audio devices.

Specifications:
Color: Black, black & red, black & blue(optional)
Batterys: 1*3.7V 300mAh
Aux input: 3.5mm
Package size: 165*145*90mm/6.5*5.71*3.54in
Package weight: 310g/10.93oz

Packing list:
1*Gaming headset
1*USB cable
1*Audio cable
1*Manual