Datavideo AD-10 Audio Delay BoxThe Datavideo AD 10 Audio Delay Box supports up to 400ms of sound delay, and with its easy to adjust knob design, you can synchronize video and sound with precision. Powered via USB, you can take the Audio Delay Box virtually anywhere. Compatible with a wide range of microphone input requirements, the box has inputs that are switchable between microphone or audio line input and switchable condenser dynamic microphone. Features Provides up to 400ms