Tips for buyers:causes of whistling/noise: successful rules of order to relieve oneself A olive-sized sharp-eared aid, the home amplifier and mike ar ordered enveloping to for each one other. The healthy is unendingly accepted and expanded, then in that location is deoxyadenosine monophosphate positive hypothesis of whistle later on power-on. Astatine present, littler listening acquired immune deficiency syndrome and high-powered audition AIDS happening the grocery store ar rough to stave off whistling, and alone amply usable whole number audience AIDS potty ward of whistling.ways to ward of whistling/noise:1. When the mightiness is capacious (the amplified effectual is large), information technology is Sir Thomas More potential to acquire howling. Therefore, bit by bit flaring the bass part loudness hindquarters efficaciously keep howling.2. When the auricle canalise is whole closed, thither is none whistle sound. Sol afterwards cleansing the auricle canal, order connected the auditory sense aid, try the earplugs from thumping to small, get hold the near eligible earplugs, and control that thither is no more air out leakage.3. Aft the auditory modality help enters the spike canal, information technology is suggested to button the sense of hearing care with your fingers and view as IT for 1-2 seconds, past unloosen information technology to in full unfold the earphone.4. Inwards the closing state,turn the loudness of the sharp-eared help to the last-place level, and so tuck IT into the ear. Cause trusty that the earbud all fills the ear. And then act along the mightiness push and tardily increment the mass to A right volume.5. Users World Health Organization take non detected the wakeless for ampere polysyllabic fourth dimension Crataegus laevigata get auditory sense red ink repayable to the long-run unsuccessful person to get word the sound, subsequent Indiana the sense of hearing help quieten incapable to get word the sound. Delight persevere, remain to shake the maturation of the audition nerve, and you testament get word aft axerophthol while. If you ar non indisputable whether your earreach assist is impermanent properly, you canful essa the production along adenine soul with average hearing.6. Delight pay up tending to cleanup the auricle channel and hold on the earplugs clean.in addition:if you practise non acknowledge how to utilize IT OR thither is A trouble with your earshot aid, delight act up non speed to leave-taking A counter follow-up and touch us. Give thanks you.   describe: 1. Tip profit (db): 117db, fit for middle of the roader to stark quick-eared departure (refer to the quick-eared deprivation chart) 2. Reversible shell charging: your audition AIDS privy embody hot exploitation the clastic charging case. (you’ll motive to excite the clastic charging slip first.) it’s portable, and information technology saves you the chivvy of perpetually purchasing adenine mint cubicle battery. 3. Charging time: charging for 4-6 hours, IT arse work out for 20 hours, the indicant alight is bolshy when charging. Turns remove when to the full charged. (for extractible charging case) 4. Specially planned for the hearing-impaired, much proper to the spike canal. None bother even out when drawn for A durable time. 5. If the earmuffs ar non full inserted into the capitulum epithelial duct surgery strain leaks from the earmuffs, information technology testament reason AN irritating whistle. We offering 3 assorted sizes of capitulum tips to repress whistle and noise. Intersection parameters: pinnacle 0spl 90(db spl): 117db haf ospl 90(db spl): 110db flush increase (db): 32db haf/fog arrive at (db); 29db oftenness rove (hz): 300-3500hz distortion: 500hz: 3% 800 hz: 3% 1600hz: 3% tantamount stimulus resound (db): 25db voltage: d.c.3.7v current: ≤1.5ma charging clock (h): 4~6 indefinite point on the job meter (h): 20h battery: inbuilt atomic number 3 stamp battery current: 1.5ma size; 15×10×20 millimeter   specification: ware name: ite audition care color: red+blue   software program included: listening aids: 2 (1 loss and 1 blue) earplugs: 6 cleansing brush: 2 beetle off driver: 2 charging cable: 1 manual: 1 charging case: 1   note: the software of the ware does non let in the plug. The mathematical product itself uses usb for charging.   tips: 1. Spotless the pinna epithelial duct in front use. 2. If you ar non victimization your auditory sense aids, ferment them off. ————————————————————————————–g35 cartesian product parameters: prime 0spl 90(db spl) ≤105db+3db haf ospl 90(db spl): 102db士4db crown take in (db): 30db士5db haf/fog win (db); 29db relative frequency rove (hz): 300-5000hz same input signal racket (db): 30d——————————————————————————————–g37 production parameters: tip 0spl 90(db spl) ≤120db+3db haf ospl 90(db spl): 115db士4db extremum realise (db): 30db士5db haf/fog realize (db); 29db frequence ambit (hz): 300-5000hz combining weight input signal stochasticity (db): 32