Features:

Multicolor optional, light weight and portable
With clip on the back, easy to clip on anything
Built-in Li-ion battery, directly connect with PC for re-charging
Also can be used as USB Flash Drive

Specification:

Material: Plastic
Dimension: Approx. 4.3cm x 2.9cm x 1.5cm (L*W*H)  
USB Cable Length: 53cm
Headset Length: 62.5cm
Player Color: White/Black/Blue/Light Purple/Green/Red/Pink
USB data storage: USB 1.1 / 2.0
Memory Card Support: 128MB to 8GB Micro SD/TF Card (Not Included)
Support music format: MP3 & WMA
Charging Time: 2 hours
Play Time: About 3-4 hours
Quantity: 1 Piece