It looks new. Used less than a few hours. Opened and tested working.

AKG WMS40 Mini Dual Vocal Set Wireless Microphone System is very easy to use, just plug and you can play it. The included receiver offers two balanced outputs via 1/4″ jack connectors. Two included HT40 Mini handheld transmitters feature a dynamic cardioid capsule for maximum gain before feedback.

Dual Receiver Operation

2 x HT40 Handheld Wireless Transmitters

30-Hour AA Battery Life

2 x Balanced 1/4″ Outputs

Single Fixed-Frequency System

Includes Universal Power Supply

Transmitter

• Frequency Bandwidth: B & D
• Audio Frequency Response: 40 to 20 kHz
• Signal to Noise: 110 dBA
• Total Harmonic Distortion (THD): 0.8% @ 1 kHz
• Peak Deviation: 45 kHz
• Nominal Deviation: 15 kHz
• Radio Output Power: 10 mW
• Transmitter Synchronization: Manual
• Interchangeable Mic Heads: No
• Number of Selectable Frequencies: 1 fixed frequency
• Range: 66′ / 20 m
• Modulation: FM
• Pilot Tone; No
• Encryption: No
• Battery: 1 x LR6 AA alkaline
• Operating Time: 30 hours
• Material of Construction: Plastic
• Operating Temperature Range: 14 to 131°F / -10 to 55°C
• Dimensions (H x W): 9.1 x 2.0″ / 230 x 51 mm
• Weight: 6.9 oz / 195 g

Receiver

• Frequency Bandwidth: B & D
• Audio Frequency Response: 40 to 20 kHz
• Signal to Noise: 110 dBA
• Total Harmonic Distortion: 0.8% @ 1 kHz
• Radio Sensitivity: -100 dBm
• Channels: 2
• Number of Selectable Frequencies: 1 fixed frequency
• Frequency Selection: Fixed
• Range: 66′ / 20 m
• Modulation: FM
• Encryption: No
• Pilot Tone: No
• Transmitter Synchronization: Not necessary
• HiQnet Compatible: No
• Rack Compatibility:
  1/3 rack size (19″)
  Rack Height: 1 RU
• Antenna: 2 x fixed external antennas
• Audio Output:
  2 x balanced TRS 1/4″ (6.3 mm) female jack
  Balanced audio output adjustable from mic to line level
  Output Level at Rated Deviation: 500 mV rms
• Power Supply:
  Type: DC socket
  Voltage: 12 VDC
• Material of Construction: Metal
• Operating Temperature Range: 14 to 131°F / -10 to 55°C
• Dimensions (LxHxW): 5.2 x 1.7 x 5.2″ / 132 x 43 x 133 mm
• Weight: 1.3 lb / 581 g