AWEI B922BL Earphones In-Ear Bluetooth Hands-free Black

Awei B922BL Portable Wireless Magnetic Lock Earphone black

What is Headphone Sensitivity?

Sensitivity works hand-in-hand with the impedance of the headphones.  They must correspond to each other because they both work hand-in-hand to regulate sound and produce clear acoustics without distortion. The sensitivity measured by dB SPL/mW. The Bigger dB, The higher the sensitivity rating. A high sensitivity will get a wide range of power output, but may get some distortion at the same time. Low sensitivity is harder to damage and not easy distortion, however, it need your device have more power output than high sensitivity one. Generally smart phones, tablets, and mp3 players need a earphone from 85dB to 120dB.  It should be noted that at 120 dB, the human ear begins to replace the sensation of hearing with that of pain. 

What Is Headphone Impedance?

Most earphone with low impedance (less than 25Ω) require little power to deliver high audio levels. So it can save your device power. Headphones with higher impedance (25Ω and over) demand more power. But, they are protected from damage caused by overloading. They can also be used with a wider range of audio equipment.

What Is Earphone Frequency?

Frequency response is the range of bass, mids and treble. 20 to 20,000 Hz is generally accepted as the audible frequency range, this is the standard for most headphones. Some Earphone offer wider ranges (for example, 5 to 33,000 Hz), but better frequency response does not always mean better sound quality. Below 20 Hz bass frequencies can be felt more so than heard, treble frequencies over 20,000 Hz are not always audible.

How to choose Headphones / Earphones which suit your self?

Generally, more expensive headphones are made with higher quality materials and better engineering, improving the sound quality. $10 headphones will sound good, but not as good as $30 ones. Cheaper earbuds often run into problems like falling out of ears, hurting ears, or simply making dents in them from the cheap plastic.

Neckband earphone are exactly well, This is recommended for joggers or people who wear hats a lot and also for sunglasses fanatics.

Earbuds and in-ear headphones tend to be better at sound isolation, due to the seal they provide in your ear.

You are the person who is going to be using these headphones day in day out. If a $5 pair of headphones sounds the same as a $500 pair of headphones, go for the cheaper pair. The sound quality is not going to change just because they are more expensive!

Warm Tips:

When you connect the bluetooth earphone with your device first time, You need press the button about 5-6 seconds, when you hear the Power On, still hold the button, soon you will hear Toot Sound(blue-red light flashing), then you will find AWEI MUSIC on your cellphone, Good time ! 

• Bluetooth 4.2 wireless connection up to 10 meters
• In-ear wireless design, good for enjoying music while doing sports
• Large battery capacity, low power consumption, long life
• Noise Reduction with CVC 6.0
• Application: Computer, Mobile Phone, Android Smartphone, cellphone, telephone, tablets, HUAWEI, Samsung, HTC, Sony, LG, Portable Media Player, MP3 player, iPhone, iPod, iPad and other standard Bluetooth devices

General Description
At the heart of the IE 800 are several small but invaluable breakthroughs, like the perfected extra wide band (XWB) transducer system. Flaunting a diameter of only 7 mm, it is currently the smallest extra wide-band sound transducer available in dynamic ear canal phones and promises distortion-free sound, capable of performing even at high sound pressure levels.



With Sennheiserʼs state-of-the-art dampened two chamber absorbers (D2CA), ceramic housing and ergonomic, oval-shaped ear adaptors, the IE 800 is loaded with numerous ground-breaking innovations. Designed, developed and produced in Germany, it not only boasts innovative technology but also feature an attractive, yet modern and elegant design. Manufactured with high-quality materials, such as scratch-resistant ceramic for the housing to ensure longevity, the IE 800 ear-canal phones made enjoying audiophile music on-the-go, a reality.
Features
Dynamic linear-phase driver with extremely wide bandwidth (XWB)
Very low overall harmonic distortion
Ergonomic, oval-shaped ear adaptors for maximum comfort
Two protective meshes - one situated in the ear cushion and one in the cone, effectively protects against dirt contamination and for easy cleaning
Attenuated dual-chamber absorber (D2CA)
Extremely deep, distortion-free bass
Premium leather carrying case
2 year warranty
Delivery Includes
IE 800 ear-canal phones
Ear adaptor sets (5 pairs of different sizes)
Premium leather carrying case
Cleaning tool
Instruction manual

Technical Data
THD, total harmonic distortion    Cable length    1.2 m symmetrical, oxygen-free (OFC) copper cable
Operating temperature    -10 °C - +55 °C
Attenuation    - 26 dB
Weight    Without cable:    8 g
Sound Pressure Level    125 dB SPL
Transducer Principle    Dynamic, vented closed
Frequency Response    5-46,500 Hz (-10 dB)

UltraFit 1000 Technical Specifications
Style     In Ear Bud
Frequency Response     18Hz-23Khz
Sensitivity     118db
Impedance     16 ohms
Transducer Type     Dynamic Balance®
Transducer Diameter     14.2mm
In Line 3-button Remote Control (iPhone, iPod, iPad*)     Yes
Built-in Microphone     Yes, In-line
Input Connections     3.5mm
Approx. Weight     0.5oz (14gm)
Finishes     Black & Red, White & Grey
Parts & Labor     Warranty 1 Year
Included Cables     11.4" Round, 14" Flat, 41" Flat
Included Ear Tips     3 Pairs StayFit™ Silicone Ear Tips (S/M/L)
Included Accessories     Moisture Resistant Soft Case, Shirt Clip, Quick Start Guide and Manual

Driver Diameter: 35mm
Impedance: 32'
Frequency Response: 20-
20KHz
Sensitivity (S.P.L.): 100±3dB
Input Plug Diameter: 3.5mm
and 3.5mm iPhone® included.

UltraFit 3000 Technical Specifications
Style     In Ear Canal
Frequency Response     8Hz-24Khz
Sensitivity     118db
Impedance     16 ohms
Transducer Type     Dynamic Balance®
Transducer Diameter     6mm
In Line 3 button Remote Control (iPhone, iPod, iPad*)     Yes
Built-in Microphone     Yes, In-line
Input Connections     3.5mm
Approx. Weight     0.4oz (11gm)
Finishes     Black & Red, White & Orange
Parts & Labor     Warranty 1 Year
Included Cables     13.4" Round, 14" Flat, 41" Flat
Included Ear Tips     Silicon Single Flange S/M/L, Silicon Triple Flange S/L, Memory Foam S/L
Included Accessories     Nokia® Adapter, Moisture Resistant Soft Case, Shirt Clip, Quick Start Guide and Manual