The Beachtek DXA-SLR PRO is a compact adapter that docks to the base of the HDSLR, providing XLR inputs for professional mics, VU Meters to monitor signal strength, tactile control of fade and gain, and an AGC disable feature that enables certain HDSLRs to record noise-free audio.

Technical specifications:
- Inputs: 2 x XLR, 1 x 3.5mm monitor input
- Outputs: 1 x 3.5 mm camera output, 1 x 3.5 mm headphone output
- Maximum Input Levels: Mic: -3 dBu, Line: +14 dBu
- Output Level: Nominal mic levels
- Frequency Response: 20 Hz to 20 kHz (+/- 0.5 dB)
- THD: Less than 0.01% @ 1 kHz, -30 dBu input
- S/N Ratio: 85 dB @ 1 kHz, -30 dBu input
- Gain: Lo gain: 0 dB, Hi gain: 15 dB
- Phantom Power: Dual regulated 12 or 48 volt, current to 14 mA (direct short)
- VU Meter: -18 to +3 dB in 3 dB increments
- Battery Type: 1 x 9 volt alkaline or lithium battery
- Battery Duration: 3 hours with alkaline (no phantom), 8 hours with lithium (no phantom)
- Dimensions: 6 x 3.75 x 1.75" (152 x 95 x 44 mm)
- Weight: 18 oz (0.51 kg)