AGPTEK U3 USB Stick Mp3 Player, 8GB Music Player Supports Replaceable AAA Battery, Recording, FM Radio, Expandable Up to 128GB, Black

REPLACEABLE BATTERY: Never worried about power, replace at any time with 1 AAA Battery(Not included). The battery capacity of different brands may influence the battery life of the player. NOTE: The replaceable battery should be out of the device to transfer files. The battery icon will show empty after about 10H but still can work for a few hours.
USB DESIGN: No Cable needed, you can directly connect with PC to transfer files.USB 2.0 providing high speed transfer,Could be used as a flash drive. It has no lock screen function due to the special USB design. NOTE: Don’t support charging via USB and only replace batteries.
SIMPLE OPREATION: Support Music format MP3/WAV, Playing modes: normal, shuffle (random), repeat. Support 6 equalizers.
LARGE MEMORY: 8 GB Memory capacity Stores up to 2000 songs; Supports up to 128GB Storage card (not included). There is no limit to the number of songs from folder option.
ADDITIONAL FUNCTION: The player also functions as an FM radio and as a recorder. Meets your different requirements.