※Shipping service. Special Feature = Internal and External Tweeter Research/Modern Noise Thoughts Vol.3/SR Speaker Research/New BLT Amplifiers/Sound Field Correction Using Partitions/Driver Tube Research/Frontier Technology “VHD Technology” /Published Circuit Diagram: ElectroVoice TL505 Enclosure/Mixing Console and Noise///S59.10.1 published. The photograph is a sample, so the actual product may be broken, written, etc.