Button instruction: 1. Recording REC: Press and hold the REC key while LED lights up at this time speak to the MIC the sound will be recorded into the ISD1700 voice chip in the. After recording some and lift this key LED will also turn off press again to start recording the second paragraph the subsequent paragraphs were operating. 2. Playback PLAY: There are two ways edge-triggered and level-triggered. (Note: After recording tone playback pointer will stay in the starting address of the last segment of the finished recording playback at this time is to put the last paragraph) 1). Edge Trigger: Click the PLAY button that put the current segment LED flashes during playback and power off until the sound end. The playback pointer will turn to the start address of the segment just put in when finish the playback click again the PLAY button to play it. 2).Trigger level: Regular press PLAY button voice chip will play all audio information and the cycle until you release this button. 3. Fast forward FWD: Before performing playback operation click this button playback pointer will point to the next section double-click the starting point to the second paragraph of this paragraph. Click this button during playback to stop playback of the current segment and then play the next paragraph if the last paragraph is currently playing stop playing the last paragraph of play in the first paragraph. 4. Erase ERASE: Single-segment erase operation can only be effective on the first and last paragraphs when the playback pointer is the first or the last paragraph the key point here is the first or the last paragraph erased. Playback cursor will jump to the corresponding second or penultimate paragraph before erasing. Normally this key more than 3 seconds chips into the "Erase all modes of operation" while LED lights flash twice continue pressing this button LED blinks off after 7 times then release the button voice messaging inside the chip is all erased. 5. Reset RESET: Click this button for reset operation 6. Volume adjustment VOL: Click this button to adjust the volume of the chip output sound. The default is the maximum sound output of the chip according to every tap sound attenuation by 4dB. 7. FT straight-through operation: The FT pin and GND shorted will continue to remain low start pass-through mode. Passthrough operations will have direct access voice output from the speaker or AUD Analn end. During recording if you press the FT will also record incoming voice signal Analn