A “wireless microphone transceiver” refers to a microphone system that uses a transmitter‑receiver pair to send audio wirelessly (no cable) from the mic to a receiver which outputs the sound to a recording or amplification device
Specifications
When evaluating a wireless microphone set (transmitter + receiver), these are the main specifications you should look at:
• Frequency / Carrier Frequency / Frequency Range — the radio frequency band on which the mic transmits (e.g. UHF 500–700 MHz, 514–596 MHz, etc.). This determines where in the radio spectrum the system operates.
• Modulation / Transmission Method — typically analog FM (for many traditional wireless mics), though some modern wireless mics may use digital transmission. Modulation affects how audio is encoded over radio.
• Number of Channels / Channel Spacing / Channel Options — how many distinct frequency‑channels the system supports (useful when many wireless mics are used simultaneously).
• Transmission / Operating Range — how far the wireless signal will reliably travel (line‑of‑sight). For good quality: often 50 m up to 150 m+ depending on system and environment.
• Audio Frequency Response — the range of audio frequencies the system can carry without too much loss/distortion (e.g. ~40 Hz–18 kHz, or ~45 Hz–20 kHz, etc.)
• Signal‑to‑Noise Ratio (SNR) / Dynamic Range — indicates how clean the audio is (how much noise vs actual signal). Higher SNR (e.g. > 100 dB) is better.
• Total Harmonic Distortion (THD) — amount of distortion introduced by system. Lower is better (e.g. ≤ 0.5%).
• Output & Output Connectors — how the receiver outputs audio (balanced XLR, unbalanced ¼″ jack, 3.5 mm, etc.), and output level (mic‑level, line‑level, output voltage).
• Power / Battery / Power Supply — what powers the transmitter (e.g. AA batteries or built‑in rechargeable battery) and receiver (AC mains or DC supply); also gives an idea of battery life / continuous use time.
• Transmission Power (RF output power) — sometimes given (e.g. < 10 mW) — influences range and signal strength.
• Receiver Sensitivity — how good the receiver is at picking up weak signals (lower dBm is better sensitivity).
• Latency / Delay — time delay between speaking into mic and audio output (especially important if used for video or live monitoring).
• Operating Conditions — e.g. working temperature range, which may matter for outdoor or tour use.
