Features: brand new and high quality Capacity: 8GB, 16GB, 32GB, can store audio, conference, learning materials. for Ideal Gifts: Gifts for parents, friends, family, students, colleagues. Microphone: Built-In High-Quality Microphone. Recording Method: One-Key Recording and Saving, supports video shooting. Use as a USB flash drive when shutting down, and use as a voice recorder when turning on. Specifications: Recording time: 18-28 hours at full power (depending on the environment). Capacity support: 8GB capacity can store 90 hours of recording. Battery: Built-in 110MA-3.7V rechargeable lithium battery. Charging time: about 2 hours Sampling speed recording: 48KHZ Bit rate: 128KBPS Recording file format: WAV Material: ABS+Metal Color: Black, Blue Memory: 8GB, 16GB, 32GB Product Dimension: approx. 7x0.9x2.1cm/2.76x0.35x0.83inches Net Weight: 30g/0.07lbs Package Includes: 1PC Flash USB Drive Pen U Disk Keychain note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.