1.sport mp3 2.100% Brand New 3.Play Time:4-6hrs 4.Charging time:1-2hrs 5.No built-in momery.With Micro TF Multifunction Stereo Headphone Sports MP3

1.Support TF cards.2.Audio Format Support  MP3/WMA/WAV3.Builded-in Rechargeable 3.7V 400mAH Li-ion  battery 4.Memory channel function5.Integrated FM radio 

6.Fully charged battery : Up to 20 hours music time, or 8~10 hours talking time.

7.Battery charging time: 2.5 hours 8.Advanced: Add additional circuit to get a better FM hearing; SNR(Singal to Noise Ratio) ≥85%;

Item	Description
Support System	Windows98/SE/ME/2K/XP
Music Play	MP3 format
Signal-to-Noise Ratio	≥85db
Expansion Card	Support 128MB-16GB TF card
FM	Support (87.5MHz-108MHz)
Speaker	Built-in speaker 32Ω/0.25W
Battery	Rechargeable lithium battery, DC3.7V600MA,can play about 20H
Adapter	AC100V-240V USB5V/300mA
USB	USB2.0
Size	23.37*65.12*77.76MM

Multifunction Stereo Headphone Sports MP3