4pcs Stereo Sport Headset Headphone MP3 Music Player Micro SD TF Slot Black

Features: 1.Built-in TF/ micro SD card slot up to 8GB TF/ micro SD card( card NOT included). 2.Just save your loved songs in TF/ micro SD card and then play them with this sport player. 3.Doubles as a TF/ micro SD card reader if connect it to computer. 4.Supports MP3 WMA music format. 5.Built-in rechargeable li-on and charge by USB cable. 6.Easy to use, On/ off toggle and 3 Key-press: Play/ Pause, Volume / -(long press), Previous/ (short press). 7.Comfortable and secure for most users: bicyclist, runners, joggers, walkers, etc. 8.Wrap around wire free headphones, designed to stay on your head. 9.Great quality, super stereo sound lets you enjoy your sports and music at the same time! Specifications: 1,:Black 2.Audio format: WMA, MP3 3.S/N ratio: 86db 4.Output frequency: 20Hz20KHz 5.Port: USB 6.: 3.7V Li-po 7.Charge time: 2-3 hours 8.Playtime: Approx.3 hours 9.Supporting system: Windows 98/ ME/ 2000/ XP/ Vista/ 7, iOS 10.Working temperature: 0 Celsius degree-45 Celsius degree 11.Headset size: Approx. 14 * 13cm/ 5.5 * 5.1in
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