The speaker is made of special material , with clear-sound,waterproof function.It suits for hotels, shopping markets, bus station, gardens, conferece rooms, etc.

(ceh-304t ) ceiling speakers
Mode ceh-304t ceh-305t(ceh-305th) ceh-306t(ceh-306th)
Rated power(w): 3w/6w 3w/6w 3w/6w
Line voltage(v) 70v-100v 70v-100v 70v-100v
Freq. Resp. (hz): 80hz-18khz 80hz-18khz 80hz-20khz
Dimensions(mm): &oslash180*51 &oslash198*55 &oslash245*66
Hole dimensions(mm): &oslash151 &oslash166 &oslash216
Sensitivity(1w, 1n): 91± 3db 91± 3db 91± 3db
Weight: 0. 68kg 0. 74kg 1. 1kg
Composing: 4"*1 5"*1 6 1/2"*1

(ceh-38t ) ceiling speakers
Mode ceh-38t ceh-48t ceh-204t ceh-205t
Rated power(w): 3w/6w 3w/6w 3w/6w 3w/6w
Line voltage(v) 70v-100v 70v-100v 70v-100v 70v-100v
Freq. Resp. (hz): 150hz-15khz 150hz-15khz 150hz-15khz 150hz-15khz
Dimensions(mm): &oslash185 &oslash230 &oslash168 &oslash200
Hole dimensions(mm): &oslash165 &oslash200 &oslash145 &oslash175
Sensitivity(1w, 1n): 94± 3db 94± 3db 94± 3db 94± 3db
Weight: 0. 8kg 0. 87kg 0. 66kg 0. 87kg
Composing: 5"*1 6"*1 4"*1 5"*1

(ceh-21t ) ceiling speakers
Mode ceh-21t ceh-22t ceh-23t
Rated power(w): 5w/10w 10w/20w 10w/30w
Line voltage(v) 70v-100v 70v-100v 70v-100v
Freq. Resp. (hz): 150hz-15khz 150hz-15khz 150hz-15khz
Dimensions(mm): &oslash210 &oslash240 &oslash285
Hole dimensions(mm): &oslash165 &oslash200 &oslash240
Sensitivity(1w, 1n): 91± 3db 91± 3db 91± 3db
Weight: 1. 6kg 1. 9kg 2. 1kg
Composing: 5"*1 6"*1 6"*1