| Power Requirements | Battery: R20P (D) x 10 (15V DC) External Power: 12DC Battery |
| Output Power | Rated 30W, max. 40W |
| Battery Life | Approx. 17 hrs. (EIAJ)*1 Whistle: Approx. 90 min. (EISJ)*1 |
| Audible Range | Voice: Approx. 800m (EIAJ)*1 Whistle: Approx. 1000m (EISJ)*1 |
| Signal Sound | Whistle (1,600Hz to 2,400Hz) |
| AUX Input Sensitivity | -10dB*1 (300mV), 10k ohms (ø3.5 mini jack, stereo plug acceptable), volume control |
| EXT Mic Input | 600 ohms, unbalanced, ¢3 phone jack, volume control |
| Diaphragm | Polymide film (voice coil, bobbin) |
| Antibacterial Treatment | Microphone |
| Operating Temperature | -0ºC to +40ºC |
| Finish | Horn ring: Vinyl chloride, gray ; Horn: Aluminum, light gray, paint ; Microphone and other: ABS resin, gray ; Strap: Nylon, black ; Others: ABS resin, gray |
| Dimensions (W × H × L) | ¢235 × 512mm |
| Weight | 3.6g (without batteries and microphone) |
| Accessories | ø3.3 mini plug (AUX input) × 1 ; External power supply cord (1m) × 1 ; Splash-proof cover × 1 |
| Option | Speaker stand: ST-16 Microphone: DM series |