CCA CRA Composite Polymer Diaphragm Dynamic Driver HiFi In-ear Earphone -Upgraded 3.8μ Ultra-thin Diaphragm -Ergonomic Design, Comfortable Wearing -HD Microphone&Zinc Alloy Housing   Upgraded 3.8μ Ultra-thin Diaphragm CCA CRA adopts an ultra-thin 3.8μ diaphragm that delivers better high frequency extension and you can hear more details even at the frequency of 7K-18Khz. Moreover, upgraded dual magnetic driver speaker makes low frequency to be more prominent with better separation of vocals and music. The performance of this kind of diaphragm excels most products in the market Hi-Res Audio, Satisfying Tuning Take a look at the curves of CCA CRA, you will be amazed by how professional and extraordinary the performance is. Break the standards to achieve further is what CCA believes, thus CRA is presenting you a deep bass and ultra-high frequency details. Shocking low frequency will make you feel like at the concert, the vocal, the instrument...everything is heard clearly and thoroughly Ergonomic Design, Comfortable Wearing CCA CRA is designed with an ergonomic cavity structure that fit your ear securely and tightly. The lightweight cavity and the memory ear hook can greatly reduce fatigue. Even wearing for long time, you won’t feel that fatigue as other earphones might do 0.75mm 2Pin Detachable OFC Cable For the connector, CCA CRA adopts recessed 2 pin that can better protect the contact pins from break. Silver-plated OFC cable is detachable to ensure future upgradeability. You can easily change the wired earphone into wireless with a single change of cable. More fun is to be discovered HD Microphone & Zinc Alloy Housing CCA CRA is designed with two versions, microphone or not. For mic version, you are able to control everything with the in-line control and enjoy HD sound quality without any issue. Despite this, the supreme zinc alloy housing and resin mixed shell is quite elegant and high class. The texture is so well made that beyond its value   Impedance 34ohm Sensitivity 105dB Frequency range 20hz-40kHz Plug 3.5mm Pin 0.75mm 2Pin Cable OFC cable Cable length 125cm

CCA CRA+ 10mm Patented Ultra-thin Diaphragm Dynamic Driver IEMs -With Various Upgrades, Never Stop To Be Better -Entirely New 10mm Dynamic Driver -Luxury Appearance -Comfortable To Wear -High-Purity Cable   With Various Upgrades, Never Stop To Be Better CRA+ is a better upgrade on the classic, tuning, mold, and sound quality have been improved to a high level. Compare to CRA , CRA+ adjust the speaker structure from new molding, to achieve the better improvement & extraordinary hearing experience from the F1 ( first formant frequency ). From CRA+ tuning, bring you stronger bass, wider frequency response, and shocking soundstage to terble extension. Benefit from the 10mm drive with tuning upgrade, CRA+ with better soundstage, enjoy the HiFi music easily. Entirely New 10mm Dynamic Driver CRA+ is equipped with an entirely new dynamic driver, which combines multiple outstanding acoustic tuning technologies, using a patented ultra-thin polymer composite diaphragm. 0.15MM magnetic gap benefit to the lower distortion rate, 0.035MM diameter loop achieve the stable and efficient driver vibration frequency, to bring you an unparalleled acoustic feast. Luxury Appearance Shining debut with CRA+, to be more outstanding than ever. Luxury appearance with multiple exquisite manship, the products are even more special. Comfortable To Wear CCA CRA+ is lightweight with an ergonomic design that greatly improved wearing comfort and it made the curves of the shell fit your ear as much as possible. There is no burden for long-term wearing, bringing a comfortable wearing experience. High-Purity Cable The standard 0.75mm gold-plated pins are compatible with a variety of 2Pin standard upgrade cables, which can be upgraded as a wireless version with Bluetooth ear hooks or use the other hifi cable. It has 3.5mm gold-plated pins that can compatible with multiple devices. With a Gold-plated interface anti-oxidation and anti-rust design, it will undoubtedly be more durable. The upgrade cable can effectively prevent wire knots.   Model CRA+ Pin type 0.75mm Cable length 120±5cm Plug Type 3.5mm Impedance 23.5Ω Frequency Range 20-40000Hz Sensitivity 111dB±1dB