Easy to use, one switch recording. Can still record while charging. Super high quality recording. Mini size, easy to carry. Size: 70 x 22 x 10mm Memory: most support 32GB(the memory card NOT included) Tip : 1, when the switch is in the "off" state, it can be displayed when inserted into the computer. 2, be sure to insert the TF card before recording. 3, please read the instructions on the package card before use. Product Description Description: 32GB USB pen flash disk digital audio player recorder voice Features: Easy to use, one switch recording. Can still record while charging. Great recording of high quality. Mini size, easy to carry. S itant: Size: 70 x 22 x 10mm Color : black, white Memory: most support 32GB(the memory card NOT included) Recording format: WAV Recording time: about 70hours Battery: Built-in rechargeable Li-battery PC interface: USB 2.0 Battery life: about 13 hours Audio output : play by computer Support system: Win7, XP, WIN8 or above Package includes: 1 x 32G USB Disc Voice Recorder Mini recorder instruction: 1. please switch to ON when recording. After the indicator flashes red for 5s, the recorder has started, a recording; switch to "OFF" the red light is off, and save the recording, the recording stops working. 2.The recording format supports MP3, does not work to record while charging . 3. make sure to insert the TF card before recording. 4.The recorder will take 2-3 hours to fully charge after connecting to computer via USB cable. The indicator will flash while charging, the indicator will turn red when fully charged.