It is a karaoke microphone that Jin used from Youtube Bangtan TV.
Please check below.
[BANGTAN BOMB] JIN's 'Epiphany' practice https://www.youtube.com/watch?v=9pBfyHHefaE
Model MP-30 Features:
- BLUETOOTH - Connects to a smartphone using a Bluetooth connection
- SUBSCRIBE - The MP-30 requires a subscription to access 220,000songs in English, Tagalog, Korean, Chinese, Japanese, Hindi, Spanish, Vietnamese & more. Or use other apps or websites (Youtube, Vimeo....).
- UPDATES - New songs are updated weekly
- INCLUDES - One (1) Wireless Microphone with built-in speakers
- MAGICSING APP – Download the free MagicSing Karaoke app from the Google Play store or the Apple app store
- REAL-TIME MUSIC NOTES – Real-time music notes are available for most songs with full HD background support
- SUPPORT – USB flash drive, multi-language compatible
- CUSTOMIZABLE - Customize melody, tone, echo, tempo and other karaoke functions
- LOW DATA USAGE - Wifi, 4G LTE, or Hotspot is required. MIDI-based songs utilize little data
- Useful time: 8 hours
- Charge time: 2 hours
- Dimensions: 9.5” x 3.5” x 2.5”
- Bag Dimension: 11” x 4” x 3”
- Bluetooth 4.0