Feature: Digital music player supporting MP3 and WMA music formats. Built-in rechargeable lithium battery provides up to 10 hours of continuous playback for high-quality sound and enjoyable music experience. Supports MP3 and WMA format music files. Equipped with high-energy rechargeable battery. Can also be used as a TF card reader. Fashionable and compact design with fine craftsmanship, ideal as a gift. Model: Strip MP3 Play time: approximately 10 hours Standby time: up to 48 hours Dimensions: 8.5 x 2.5 x 0.9 cm Weight: 17.9 g Color: Blue Battery capacity: 260 mAh Supports 2GB, 4GB, 8GB, 16GB, and 32GB TF cards (memory card not included) Operation mode: Keystroke Interface: USB 2.0 Headphone jack: 3.5 mm Supported audio formats: MP3, WMA Built-in battery type: Lithium-ion battery Package Contents: 1 x MP3 Player 1 x Lanyard Note: The package includes only the items listed above. Other accessories or products shown are not included. Note: Lighting and monitor differences may cause slight color variations between the product image and the actual item. Measurement error is permitted within +/- 1-3 cm.