Specifications: Built-in TF/ micro security digital card slot, support up to 32GB TF/micro security digital card( card not included). Just save your loved songs in TF/ micro security digital card and then play them with this sport player. Can also use it as a card reader if connect it to computer. Supports MP3 WMA music format. Built-in rechargeable li-ion battery and charge by USB cable. Neckband design, comfortable to wear, suitable for sports use. Type: Wireless Earphone Audio Format: WMA, MP3 S/N Ratio: 86db Output Frequency: 20Hz - 20KHz Port: Mini USB Battery: DC 3.7V Lithium Battery (Included) Charge Time: about 2-3 Hours Play Time: about 3 Hours Supporting System: for Windows 98/ME/2000/XP/Vista/7, for iOS Working Temperature: 0 Celsius Degree - 45 Celsius Degree Features: Wireless, Neckband, Rechargeable, Memory Card Support Size: 14cm x 13cm/5.5" x 5.1" (Approx.) Notes: Kindly noticed that this earphone has not Bluetooth, you need to insert the TF/micro security digital card which prepared by yourself. Due to the light and screen setting difference, the color of item may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Earphone 1 x Charge Cable
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