SabineTek SmartMike+ Ultra-Compact Wireless Microphone. Connects via Bluetooth and features true noise reduction, removing only noise without damaging vocals. No receiver needed, can record 48KHz full-band audio with a single unit (SB). Includes charger. No instruction manual. It's a small microphone. I used it for VR streaming. I bought it for 12,000 yen. The instruction manual is missing due to amateur handling. Please research the details before purchasing.