Please kindly noted that this item is sold by COOLL from Joybuy marketplace. Description: The MP3 player has long standby time because of its high-performance rechargeable battery. The use of ultra-small size and lavalier design enables it to be clipped at will. MP3 player also has mobile flash drive function to store MP3 songs or data anytime and anywhere. It is easy to use without external power supply because of its hot plug and play design. It is made of high-quality metal material, which is wear-resistant and durable. The length of the product is 4.3cm, the width is 2.3cm and the height is 1.4cm. It is very suitable for student, sports, running and travel, etc. Item Name: MP3 Player Material: Metal Inteface: USB1.1 per 2.0 Headphone Jack: 3.5mm Battery Capacity: 90mAh (Included) Supported Audio Format: MP3 Memory Card Type: TF Card (TF Card Not Included) Endurance Time: 4 Hours Compatible Platforms: for Win98 per SE per ME per 2000 per XP or Above Features: Portable, Metal Clip Design, Long Standby Time Size Details: 4.3cm x 2.3cm x 1.4cm per 1.69 x 0.91 x 0.55 (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x MP3 Player (Charging Cable Not Included) It is very suitable for student, sports, running and travel, etc. The MP3 player has long standby time because of its high-performance rechargeable battery. The use of ultra-small size and lavalier design enables it to be clipped at will. You can clip the MP3 player at will as it uses ultra-small size and lavalier design. Due to the use of high-performance rechargeable battery, it has long standby time. The MP3 player uses high-performance rechargeable battery, which has long standby time. It uses ultra-small size and lavalier design, which can be clipped at will. The MP3 player can be clipped at will due to its ultra-small size and lavalier design. And the use of high-performance rechargeable battery makes it have long standby time.