A video clip of zhang bin ' s wife hu ziwei commandeering a microphone at a china central television ( cctv ) presentation of its coverage plans was easily one of the most viewed items on chinese video site tudou . com on monday 星期一张斌之妻胡紫薇在央视奥运报道计划发布会上霸占话筒的视频片断轻而易举地成了中国视频网站“土豆网”点击率最高的视频之一。
A video clip of zhang bin ' s wife hu ziwei commandeering a microphone at a china central television ( cctv ) presentation of its coverage plans was easily one of the most viewed items on chinese video site tudou . com on monday 周一，张斌的妻子胡紫薇在cctv奥运新闻报道计划发布会上霸占话筒的视频片断，轻而易举成为中国视频网站“土豆网”点击率最高视频之一。
A video clip of zhang bin ' s wife hu ziwei commandeering a microphone at a china central television ( cctv ) presentation of its coverage plans was easily one of the most viewed items on chinese video site tudou . com on monday 周一在中国视频网站土豆网上出现了在央视一个奥运报道启动仪式上央视主播张斌的妻子胡紫薇抢过了话筒的视频片段，这段视频迅速成为了土豆网点击率最高的视频。
Locale needs special person to control , play - and - plug . inputting entry of six groups has 6v power supply with eidolon . if matching meeting transmitter hc - 808 hc - 706 and interface transmitter , you can build up a small meeting expanding sound system , which makes conference room installed easily and use every time 与界面话筒配接可广泛的应用在现有教学扩音设备的升级改造，替代原有手持话筒领夹无线话筒，教师讲课无需携带任何设备，彻底摆脱话筒的束缚，无需专人管理，即开即用。
The teacher must assure that the relative distance to mike is less than 0 . 5 meter , so the movable scope of teacher is strictly restricted . the disadvantage of wireless mike is : the mike breaks easily and battery costs largely . the cost is high and it is difficul to manage the equipment 授课教师必须保证与话筒间的相对距离不超过0 . 5m ，教师授课时的活动范围受到了严格的约束。使用无线话筒的弱点是：话筒易损坏，电池耗电量大，使用成本高，设备管理麻烦，大量使用时存在串频干扰，同时影响教师的外观形象。
Jhs series power ampilifier is a new generation equipment of teaching power amplifier , which can restrains howl and can increase plus by 6 - 10db . the distance of picking up sound can be increased to 3 - 6 meters . if only you install three or four pcs of interface mike , the scope of picking up sound can cover with all over the platform without any equipment and you can prelect Jhs教学型数字移频扩声器是新一代教学扩声设备，它能够有效的抑制扩声啸叫，提高传声增益6 - 10db ，话筒的拾音距离提高到3 - 6米，只需在教室安装3 - 4支界面话筒，拾音范围就能覆盖整个讲台，无需携带任何设备，即可进行讲课,使演讲者彻底摆脱话筒的束缚，扩大了演讲者的活动范围
It make the speaker get rid of bondageof mike and it expands the movable scope of speaker . it overcome the disadvantage of mike in . the life - span of equipment is more than five years . the equipment adopts hidden structure . when installed and debuged , you can use it with the power on and you need not manage it 它克服了手持话筒的不方便，领夹无线话筒经常更换电池串频易损管理麻烦等缺陷，设备使用寿命超过5年，设备采用暗藏式调整结构，经安装调试后，打开电源即用，无需专人管理。
All - purpose conference room av amplification systems must handle audio in the forms of voice , music , movie soundtracks , singing ( for live performances ) , etc . , therefore the proper locations to install speakers , the power of the speakers , the number of microphones and audio channels must all be given serious consideration 多功能厅的音频扩声系统由于需要同时满足人声（会议） 、音乐播放声（电影播放） 、歌唱声（文艺演出）等多种需求，所以在音箱的合理安装位置、功率大小、话筒的数量、音频处理方面需要着重考虑。
