Feature: 100% brand new and high quality. The keychain design makes it easy to carry and travel. It is a full-featured recorder that can provide great convenience in classroom recording, meeting recording and memo recording. being fully charged, it will continuously provide a long-term playback recording mode. : Item Type: Keychain Button Recorder Material: Metal ur: Recording format: WAV supply: Li-ion Transmission port: USB 2.0 Size: (appro.) 83x25x11mm /3.26x0.98x0.43inch Memory capacity: 4GB type: not support TF card Quantity: 1 Pc (not including attachments in the picture for presentation) : 1. Transition: 1cm = 10mm = 0.39inch 2. Due to manual measurement, please allow an error of 0-1 cm. Make sure you don't mind bidding. 3. Due to the difference between different mon s, the picture may not reflect the actual color of the item. Thank you The package includes: 1 X Keychain Button Recorder 1 X USB Cable 1 X