Máy Trợ Giảng Không Dây Cao Cấp Shidu SD-S613

Shidu SD-S511 voice amplifier Note: All the products we sell come with instructions in English. So please make sure that you are able to understand English before you buy. Thank you very much. Specifications 1. Output power: 15 W. 2. Charging voltage: DC 5 V, 500 mA. 3. Lithium battery: 1800 mA. 4. Operation time: 6 ~ 10 hours (in musical mode); 12 ~ 18 hours (in microphone mode). 5. Charging time: 3 ~ 5 hours. 6. Product size (length x width x height): 98 x 88 x 45 mm. 7. Unit weight: 221 g. 8. Available colours: rose red, sky, black. 9. Working temperature: -10 ℃ ~ 45 ℃. 10. Frequency response: 90 Hz – 18 KHz. 11. Sound coverage: 2000 ㎡. Main features 1. Exclusive patent appearance, ergonomic design, comfortable touch, easy to carry and fashionable appearance. 2. Nd-Fe-B trumpet magnet, strong penetrating sound, wide coverage. 3. Hi-Fi highly sensitive import microphone, advanced circuit IC, restrains the squeal phenomenon effectively; 4. AUX audio input support - can work as a speaker for a computer, iPad or mobile phone. 5. Latest decoding technology, TF support card, USB flash drive. 6. Intelligent digital function module, low power consumption, high Efficiency – high output, up to 15 W. 7. Double voice coil design, strong power, deep bass. 8. Professional sound amplifying circuit, amplifies clearly with no howling. 9. Professional echo circuit. Includes: (7 pieces in total) Coloured box. 1 x Shidu voice amplifier. 1 x Shidu adjustable waist belt. 1 x Shidu microphone with headphone. 1 x Shidu Male to Male 3.5 mm audio cable. 1 x Shidu USB charging cable. 1 x Shidu DC 5 V Battery Charging Adapter. 1 x Shidu User Manual.