TOA Electronics PM‑660U Paging Microphone – Desktop Push‑to‑Talk Microphone with Remote Control Function

Paging Microphone – PM-660U

The TOA PM‑660U is a durable, easy‑to‑operate desktop paging microphone designed for clear paging and general announcements. Featuring a large push‑to‑talk switch with a locking lever, a sturdy anti‑vibration construction, and a balanced output, the PM‑660U ensures low handling noise and reliable performance in commercial paging environments such as offices, warehouses, retail stores, schools, and transportation facilities.

The microphone also includes a built‑in remote control switch—interlocked with the talk switch—allowing it to control amplifier power or trigger a chime, making it ideal for integrated PA systems.

Key Features

• Large Talk Switch: Easy‑to‑use push‑to‑talk switch with locking lever for continuous announcements.
• Remote Control Capability: Built‑in switch enables amplifier power ON/OFF or chime activation.
• Low Handling Noise: Anti‑vibration design ensures clean, noise‑free paging.
• Balanced Audio Output: Reduces noise and interference over long cable runs.
• Durable Construction: Rugged housing designed for daily professional use.
• 2.5 m Fixed Cable: Four‑conductor shielded cable (no plug) included for system integration.

Specifications

Microphone

• Type: Moving coil microphone
• Polar Pattern: Unidirectional
• Impedance: 600 Ω, balanced
• Sensitivity: −58 dB (1 kHz, 0 dB = 1 V/Pa)
• Frequency Response: 100 Hz – 10 kHz

Controls

• Talk Switch: Push‑to‑talk with locking lever (short‑off type)

Connectivity

• Output Cable: 4‑conductor (2 shielded), 2.5 m (8.2 ft), no plug
• Remote Control: 500 mA or less at 30 V DC

Environmental

• Operating Temperature: −10 °C to +50 °C (14 °F to 122 °F)
• Operating Humidity: 95% RH or less (no condensation)

Construction

• Microphone Head: Zinc‑plated steel wire, gray baked paint
• Main Unit: ABS resin, gray

Dimensions & Weight

• Dimensions: 100 (W) × 212 (H) × 150 (D) mm (3.94" × 8.35" × 5.91")
• Weight: 400 g (0.88 lb), cable excluded