Questions 1. Could you tell me what is OGS? 2. I would like to check if OGS-2000S-SBS (B ) can be used in the cell-phone? I want to buy it and replace my current mobile earphone. By the way, can it be used for MP3 ? 3. Why I am not able to direct the guiding sound tube exactly to the ear hole when I wear OGS earphone? 4. How to say that TOPlay OGS earphone won't damage the hearing compare with traditional plug-in earphone? 5. I can hear external sound indistinctly while wearing the traditional plug-in earphone. How to say it was not safe compare with OGS earphone? 6. Is hanger type TOPlay OGS earphone no need to plug into ear either? 7. What is EN-50332 sound pressure safety test? Is this very important to the earphone? Questions & Answers Q: Could you tell me what is OGS? A: OGS means Open Guided Sound earphone. Q: I would like to check if OGS-2000S-SBS (B ) can be used in the cell-phone? I want to buy it and replace my current mobile earphone. By the way, can it be used for MP3 ? A: OGS-2000S-SBS (B ) is for PC using that can not work for mobile phone, it have a line-in (MIC) and a line-out (Earphone) plug separately. The earphone plug is 3.5mm/3pins type that can also work for MP3. Q: Why I am not able to direct the guiding sound tube exactly to the ear hole when I wear OGS earphone? A: OGS utilizes the Pinna Sound Collecting theory, that is the most natural way of hearing. It allow the music go together with the sound of surrounding environment into the ear. So OGS earphone does not need to aim at the earhole to enjoy the music. Below chart could explain Pinna Sound Collecting theory. Q: How to say that TOPlay OGS earphone won't damage the hearing compare with traditional plug-in earphone? A: Traditional plug-in earphone need to block the ear channel to have a space for resonating. Thus, people were isolated when earphone were plugged. And it will lead to our inner ear only stimulated by limited tones that will cause our hearing exhausted or hearing damage. OGS earphone were designed with a front resonating cavity to take place ear cannel resonating. When we listen music by OGS earphone, it could keep our ear channel open to the air and apply the most natural way to collect the sounds trough pinna. So it is the best solution to have good audio quality and comfortable for long time listening. Q: I can hear external sound indistinctly while wearing the traditional plug-in earphone. How to say it was not safe compare with OGS earphone? A: Because the traditional earphone needs to block up the earhole that isolate external sound. We could hear the external sound when we turn the volume low, but in fact the sound collecting functionality of our pinna was lost. Even though we could hear the external sound but we are not able to distinguish the source of sound and that is not safe. OGS earphone utilizes Pinna Sound Collecting theory to collect sound by the most natural way. People can hear external sound and recognize the sound source to achieve mobile safety request. Q: Is hanger type TOPlay OGS earphone no need to plug into ear either? A: Yes, All series OGS earphones do not need to plug into ears. Q: What is EN-50332 sound pressure safety test? Is this very important to the earphone? A: Since personal audio devices like iPod, personal CD , MP3, MP4... are so popular nowadays that caused to hearing loss getting popular in young generation. EN-50332 was issued by European Union to specify the sound pressure level of acoustic safety lately. And the earphone conditions were specified as EN-50332-2----the average sound pressure level can't over 94dB. Such limitation could protect users not exposed in high volume of sound and prevent from hearing loss. On the other hand, it makes a standard for audio device vendors to follow up.

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