Detailed Product Description Indoor wall mount speakers features: 1) Cost effective wall-mount speaker, ideal for background music, and paging applications, such as schools, hotels, auditoriums, offices, hospital, museums, patios and residential 2) Superior sound quality and stable excellent performance 3) Wider dispersion and smooth off-axis coverage 4) Easy, convenient, safe and fast installation 5) Excellent designs and finish make top grade attractive appearance Indoor ABS wall mount speaker T-601S: 1) Rated power: 6W 2) Line voltage: 70V/100V 3) Sensitivity: 92dB?dB 4) Frequency response: 130 - 6kHz 5) Impedance: 1.3k ohms 6) Dimensions: 275 x 185 x 120mm 7) N.W.: 1.2kg Indoor ABS wall mount speaker T-601G: 1) Indoor wall-mounted, plastic grille 2) Red and black push-terminal connectors 3) Speaker unit: 4" full range, polypropylene cone with dust cap 4) Rated power: 6W 5) Line voltage: 70V/100V 6) Impedance: 1k ohms 7) Sensitivity: 91?dB 8) Frequency response: 130 - 16kHz 9) Dimensions (W x H x D): 290 x 214 x 130mm 10) Net weight: 1.8kg Outdoor iron wall mount speaker T-750: 1) Rated power: 40W 2) Line voltage: 70V/100V 3) Sensitivity: 89dB?dB 4) Frequency response: 110 - 1kHz 5) Impedance: 280 ohms 6) Dimensions: 410 x 480 x 220mm 7) N.W.: 16kg Indoor ABS wall mount speaker T-760: 1) Rated power: 10W 2) Line voltage: 70V/100V 3) Sensitivity: 89dB?dB 4) Frequency response: 120 - 15kHz 5) Impedance: 510 ohms 6) Dimensions: 170 x 28 x 160mm 7) N.W.: 2.2kg Waterproof ABS wall mount speaker T-760A/B: 1) Indoor wall-mounted, plastic grille 2) Red and black push-terminal connectors 3) Speaker unit: 4" full range, polypropylene cone with dust cap 4) Rated power: 3/6W 5) Line voltage: 70/100V 6) Impedance: 1.1k/1.7k ohms 7) Sensitivity: 93?dB 8) Frequency response: 130 - 13kHz 9) Dimensions (W x H x D): 180 x 260 x 130mm 10) Net weight: 3.8kg