The RCF BM 3022 Gooseneck Paging Microphone with hi-quality unidirectional electret capsule Direct connection to power amplifiers input through CAT5 cable Adjustable line output with RJ45 connector Switchable automatic gain control (AGC) Up to 30 BM 3022 paging microphones can be linked in a ‘daisy-chain’ Selectable mixing, interlocking or priority mode among devices When activating a microphone, the announcement can be preceded by a chime. Product Specifications: Type: Desktop paging microphone with electret capsule Directivity: Cardioid Sensitivity: -65 dB Frequency Response (-3dB): 200 Hz – 7 kHz Output impedance: 130 ohms Minimum load impedance: 470 ohms Signal / Noise ratio @1 kHz: 82 dB Total harmonic distortion @1 kHz: 0.65 % Console: Console Type: Paging Working with: DXT 3000 General call: Yes Preamplified: Yes LED indicators: Yes Power requirement: Operating voltage: 24 V Power consumption: 2.80 mA Connections: Connectors: RJ45 Functionalities Priority: Yes VOX facility: Yes Chime tone generator: Yes Smart PTT: Yes Automatic gain control: Yes Accessories: Cable included: Yes Cable length: 5 m Standard compliance: Safety agency: CE compliant Physical specifications: Cabinet/Case Material: Plastic Color: Grey Product Height: 48 mm / 1.89 in Product Width: 100 mm / 3.94 in Product Depth: 159 mm / 6.26 in Product Weight: 0.74 kg / 1.63 lbs Shipping Height: 144 mm / 5.67 in Shipping Width: 329 mm / 12.95 in Shipping Depth: 129 mm / 5.08 in Shipping Weight: 1.18 kg / 2.60 lbs