Model No: X29 Main Function : Music/voice record/ Picture browse/ FM radio/Video/E-book / etc . Brand Name: RUZIU TF card slot: support expandable storage, can support up to 64 GB Size : 90cm × 40cm × 11mm Color : Black / Gold / Silver Weight : 45g ( only the device ) Built-in memory : 8GB Screen size : 1.8 inch TFT color screen Packing accessories: Manual book/ Earphone / USB cable Support MP3 format: MP3/WAV/APE/WMA/FLAC etc. OEM / ODM supported Video format: MP3 /WAV /ACT Charging time : 1.5~ 2 hours full chagred for the battery Case material : CNC Metal Voice record distance : 5~8 meter Battery : Li-battery (3.7V/ 460mAH ) Standby time : 55 hours