5Pcs Mini MP3 Music Player Lossless Sound Media Player Support 64GB TF Card 3.5mm Audio Jack Built-in Lithium Battery

High-concerned chemical : None Streaming Service Compatibility : Other Compatible Devices : Windows PC Supports EBook Reading : No Operation Mode : Touch Keys Model Number : MP3 Player Strip Style : MP3 Screen : No Balanced Out : No External Memory : Yes Audio Format Support : MP3 Brand Name : Shunmaii Origin : Mainland China Certification : None Colour : White/Blue/Pink (optional) Material : Plastic Shell Interface : 3.5 mm audio jack Memory Play : Yes Waterproof : No Battery type : built-in lithium battery Battery capacity : 160 mAh Battery Voltage : 3.7V Working hours : 6-8 hours Standby time : 20-30 hours