By selecting the mode to suit your own hearing from (EQ) sound together form designed by hearing loss degree, Smart Hearing App Soundbridge can improve hearing easily. Hearing improvement effect is better to conduct a hearing test If you want to set a more accurate individual fit shape sound, applying the test results, you can also use the manual Left/Right EQ setting function.

Left/Right in the hearing test of Soundbridge, checks the six frequencies, respectively, for frequency inaudible in particular, Itoupunida with features that support the frequency modulated output function which is applied the inspection and the frequency shift.
Soundbridge is designed to support the left and right ears, both test of the ear.\n\nTotal 12 audiometry frequences are performed automatically in maximum 3 steps for left (L) / right (R) to fit based on the hearing status of the user as Standard test,Volume control test,Frequency movement test.

You can use Soundbridge App with general earphone(built-in microphone). However. you can use it most effectively with SB earphone that is is designed optimized with it.

Soundbridge provided in the official version and free version, In case of free trial virsion, all the features of the Soundbridge app are worked 30 minutes from starting, and all value of settings the user has changed are initialized.
Official version app can be purchased in the App Store.
By the way, if the free version is used by connecting the SB earphone(S3) that is optimized designed, you can use all the features without any limitation of time as same as the official version app
You can buy SB earphones at the shopping mall of Soundbridgeapp (www.soundbridgeapp.com).

(*) Specification of SB earphone(S3) dedicated to Soundbridge App
. BA(Balanced Armature) Speaker (110 db)
. High sensitivity omni-directional microphone
. Double type Ear Tips
.Flat Cable
. SB earphone check button
, CALL Button
. 4-pole jack(3.5)