Product Description AKG WMS40 PRO MINI2 VOCAL SET DUAL. This is a set of two wireless microphones and a receiver. Since it has been used very little, I believe it is in very good condition. However, as I am a smoker, I am not sure, but there may be a tobacco smell. If you are concerned, please refrain from purchasing. Power and operation have been confirmed. [Product Description] By eliminating all unnecessary features and including only the essential ones, this is a cost-effective wireless set that allows you to use two microphones in the same place! ■ Frequency Band: 800MHz ■ Number of Receiving Channels: 2ch ■ Simultaneous Use: 2 waves ■ Audio Output Connector: TRS phone ■ RF Sensitivity: 6mW ■ Range: Approximately 20m ■ Set Contents ・2-channel receiver (SR40 MINI PRO2) ・Handheld transmitter (HT40 MINI PRO) x 2 ・Power adapter x 1 ・Instruction manual ■ System Performance ・Radio wave format: F3E ・Carrier frequency: 808.625Mhz, 809.125Mhz ・Radio wave range: Approximately 20m * When used outdoors with a clear view. Varies depending on the environment. ・Antenna power: 6mW ・THD: 0.8% or less ■ 2-channel receiver (SR40 MINI PRO2) ・Output terminal: TRS phone jack (balanced) ・Output impedance: 1.3kΩ ・Maximum output level: 5.7dBu ・S/N ratio: 110dB (A-weighted) ・Power supply: DC12V (0.5A) AC adapter ・Dimensions: 134 x 43 x 132mm (excluding protrusions) ・Weight: 524g ■ Handheld transmitter (HT40 MINI PRO) ・Antenna type: Built-in antenna ・Power supply: 1 x AA alkaline battery or AA nickel-metal hydride battery or AA lithium battery ・Battery life: Approximately 30 hours (varies depending on the usage environment) ・Dimensions: 53 x 228 mm ・Weight: 192g Note: The WMS40 PRO MINI2 series can use up to 2 waves simultaneously. Thank you for viewing.