Specifications:
| Power Source | 1.5 V DC (Battery) |
| Receiving Sensitivity | Better than 60 dB Signal to Noise ratio (20 dBμV input, ±40 kHz deviation) |
| Frequency Response | 200 Hz – 5 kHz (Portable transmitter to Portable receiver) |
| Output Level | 4 mW (16Ω load, 10% distortion) |
| Battery | WB-2000-2 rechargeable battery (option) or LR6/AA alkaline dry cell battery |
| Battery Life | 16 h (when the WB-2000-2 rechargeable battery is used) 15 h (when the alkaline battery is used) |
| Dimensions | 62 (W) × 163.6 (H) × 32.5 (D)mm (2.4” x 6.4” x 1.3”) |
| Weight | 125 g (0.28 lbs) (battery included) |
*When using an earphone not made by TOA, use the one with a ø3.5mm plug and impedance of over 16Ω.