1、Bluetooth Headset: 3.5mm wired headset with Bluetooth sound adapter, can become a Bluetooth headset. 2、HiFi Music: Connect the computer with the data cable, you can download the music you want to listen to this machine plug in the headphones, you can enjoy the wonderful HiFi music. 3、Multiple Format Support: Voice activated recorder supports APE FLAC most lossless formats, dual lossless formats independent DAC decoding. 4、Microphone Function: With microphone function, you can chat without a headset at any time. Compact, lightweight and convenient. 5、Long Battery Life: Voice activated recorder built in 190mAh rechargeable lithium battery, 1 hour full can last 5 hours, support charging while using, no power failure. 6、MP3 Player: When exercising, use a wireless MP3 player, which can be directly connected to the mobile phone through wireless, get rid of the inconvenience of carrying the mobile phone at any time. Item Type: Voice Activated Recorder Material: ABS Bluetooth: 4.2 Output Connector: 3.5mm Music Format: APE, FLAC, WAV, WMA, MP3 Bluetooth Protocol: AVRCP, A2DP, HFP, HSPMIC Transmission Distance: Approx. 10m/32.8ft Built In Lithium Polymer Battery: 190mAh Use Time: About 15 Hours Additional Functions: Telephone Answering, Bluetooth MP3, U Disk Storage 1 x Recorder 1 x Charging Cable 1 x Earphone 1 x Instruction Manual