?Features 8GB large capacity Muisc play， supports format: MP3， WMA， DRM， WMA， OGG， APE， FLAC， WAV， AAC-LC， ACELP， Audible Supports voice record and FM radio Supports USB host function Built-in 150 mAh lithium polymer battery General Specs Brands & Model MX802 Play Time (continuing) 10-13 hours FM radio 5-8 hours Channel isolation 40dB Frequency response 45-1600Hz Output power 2.4mW SNR >75dB Package Details Weight: 73.83 g Size: 16.7*9*2.5 cm