1. Recording time: 6K 75 seconds. 8K 60 seconds;
2. Chip operating frequency 6KHZ and 8KHZ can choose;
3. With power indicator light. chip indicator light;
4. The operation is simple. do not need a single chip or other modules will be able to work directly;
5. The chip control pin has been led to facilitate control of the connection
6. Power supply 5V.