Batteries for Hearing Devices is written for those who create batteries and those who use them. This may be about the engineer who designs them; a child and parents experiencing the pair of first hearing aids; a busy professional streaming phone and other audio content to Bluetooth ear devices; an 80s something active Senior who needs to understand new and old friends in a retirement community; or anyone who is interested in adopting technological advances and energy conservation into their lifestyles. This book has five sections and can be read in any order, with as many items in each section as the reader wants to use. This book can be used as a supplement in any university or college course on hearing aids or power supplies, or even as part of a clinical auditory rehabilitation program. Or it could be read with a cup of tea while having one’s feet propped up, like any other good book. Each of the five sections have a number of posts, all written with the reader in mind, and balancing scientific fact, futuristic thinking, and clinical gems making this a very readable and smoothly flowing book. While this is a book about batteries and personal hearing devices, the electroacoustic principles can be applied to classroom, workplace, and public electroacoustics. And many of the technologies can extend beyond the individual with hearing difficulty to populations such as the military and social groups who benefit from near and far field wireless communications.
Parameters: MAX-SSPL90: 118+3 dBSPL HFA-SSPL90: 110±4dBSPL Peak Gain: 33dB HFA Full-on Gain: 30±5dB Frequency Range: 200-4000HZ THD : ?10% Eq.Input Noise Level: 28dBSPL Battery Current Drain: 0.6mA Attack Time: 6ms Release Time: 22ms 1.The wire plug connected to the headset.Then earplug connector (hard) to the headset, earbuds (silica gel) to connect to the headphone connector pedestal 2.The battery installation: Gently open the battery compartment cover, put a battery into the battery compartment in the right direction, then close the battery compartment . 3.Before you use this item ,you have to turn the ON-OFF switch to Off,and turn the sound volume to minimum 4.Then put this item on you ear, keep it tightly 5.Next, turn this item ON, adjust the volume until you hear clear sound
Adjust volume to the minimum before wearing. Choose an earplug of slightly bigger size to avoid whistler. Increase volume gradually to avoid sudden increase in sound. If you hear a howling,check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage. Please regularly clean the ear plugs or ear molds in order to ensure the normal use of hearing aids. Use for long periods of time, please remove the batteries to prevent battery rot erosion hearing aid components.
SOUND DISTORTION SMALL: derived amplifies speech, separating it from background noise and sounds using energy-efficient, twelve-band digital sound processing you
WEARING COMFORT: Easy and comfortable, one-finger operation, Noise reduction control through digital chip;
ADJUSTABLE VOLUME: Digital volume and frequency program fitting as demanded by different needs; conversation more easily;
Package Content: 1 x Hearing Aid, 2 x A10 batteries, 1 x Cleaning Brush, 6 x Earplug (Different Size)
Use for long periods of time, please remove the batteries to prevent battery rot erosion hearing components.
Our batteries Zinc Air without mercury 312 Brown are built by the world leader between the producers of that builds even the fleece Rayovac Extra Advanced 312 PR41. The voltage is 1.4 V 180 mAh for acoustic hearing aid of all brands and models. The most famous battery is perhaps amplifon 312 Zas and are the same fleece for implants acustiche. should also be well for implants widex, acoustic, Oticon, Phonak, Bernafon, Resound, Siemens.
Pack of 60 batteries A312 Hearing Aid Zinc Air 1.4 for
Long life commercial 3 years with stainless steel casing
Powerful from beginning to end and the most used for implants acoustic