MECHEN MP3 Player Android 9.0 - 4 HD Touch, Bluetooth, WiFi, 512GB Expandable
Storage: 16 GB ROM with expandable storage via microSD card up to 512 GB. WiFi: Dual frequency (2.4GHz and 5GHz). ✔Extended Battery Life: Long-lasting 2000mAh battery for up to 50 hours of music playback and 8 hours of video.