1,Keyring Design: This voice recording device features unique keyring shape design, lightweight and portable. Strong metal material, sturdy and highly durable. 2,Intelligent Dynamic Microphone: This voice recorder is designed with intelligent dynamic microphone and triple noise reduction technology, which ensures noiseless recording and 360 degree recording. 3,Voice Activated Function: This voice activated recorder will start to record automatically once the sound reaches level and stop recording when there is no sound. Effectively saving memory space. 4,Easy Operation: With a simple toggle switch, it can start recording after approximately 5 seconds and save recordings by toggling the switch to "OFF or Save". Each recording is named with a timestamp, making it easy to find your files on your computer. 5,Multi Purpose: This portable voice recorder comes with earphone and charging cable. Perfect for classrooms, note taking, lectures, conferences, interviews, etc. It is a practical gift to teachers, students, writers and anyone who needs a reliable recorder. Item Type: Voice Activated Recorder Material: Metal, Electronic Component Battery Type: Inbuilt 300mAh Lithium Battery (Battery Included) Size: Approx. 8.3 x 2.5 x 1.1cm or   3.3 x 1.0 x 0.4in 1 x Voice Activated Recorder 1 x Earphone 1 x Charging Cable 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.