Sennheiser MEB 114-SB Cardioid Boundary Microphone - Vintage King
Master Series by Sound Professionals Professional Omnidirectional ultra-high sensitivity, ultra-high gain, low-noise boundary microphone and Boya XLR adapter for phantom MS-COURT-BOUNDARY-XLR
Samson UB-1 USB Boundary Microphone - Walmart.com
TOA Electronics (M) Sdn. Bhd. - EM-700 Boundary Microphone