| 1 W | 
| 625 Ω (1 W/25 V) | 
| 4 cm cone-type | 
| Two-core shielded cable | 
| 0.5 km (546 yd)/φ0.5 mm (AWG24) 0.8 km (874 yd)/φ0.65 mm (AWG22) 1.3 km (1421 yd)/φ0.9 mm (AWG19) | 
| -10 ℃ to +50 ℃ (Temperature range not to freeze the speaker and switch) | 
| Panel: Stainless steel, hairline Call button: Metal | 
| 120 (W) × 120 (H) × 57.5 (D) mm | 
| 540 g | 
| Box mounting screw (No.6-32UNC × 8) ……4, Box mounting screw (M4 × 25) ……4 | 
| For flush-mount: 2-gang electrical box YC-302 (option) For surface-mount: Indoor wall-mount box YC-822 (option) |