It is important to understand that the peak bandwidth of the entry-level music headphones generally starts at 4-5KHz and the sensitivity is reduced accordingly.
Shipping & Warranty
Peak Bandwidth range is about 9KHz
Micro 3D Printing Technology, Creating an Integrated Internal Acoustic Structure
The integrated seamless balanced aumature carrier reduces the resonance effect of the cavity. Carefully designed separated sound guide structure, the mid and high frequency balanced armature and bass frequency balanced armature are sounded through independent pipes' interpret superior sound separating degree.
Total 16 Units Professional Balanced Aumature on Two Side
Two customized heavy bass 22955 balanced units, responsible for raising the 30095 high frequency balanced armature units + Two 29689 mid frequency balanced armature, which is responsible for extending the mid & high frequency instrumental details and layering.
Self-customized Low-frequency Balanced Armature Unit, Low-frequency Texture is Not Inferior to That of Traditional Dynamic
Two professional 22955 low frequency balanced armature, not inferior to the flexible texture of the dynamic type low frequency, full and soothing bass, full of explosive power.
Physics + Acoustics Double Frequency Division, Sound Quality is Balanced, Instrumental Music is Especially Outstanding
- Free worldwide Standard Shipping on orders under US$59
- Free worldwide Expedited Shipping on orders over US$59, US$7 for orders under US$59
- Free worldwide Express Shipping on orders over US$249, US$20 for orders under US$249
You can see more details in our Shipping Policy
One Year Warranty
KEEPHIFI warrants that your KEEPHIFI device and KEEPHIFI accessories shall, as of the date of delivery, be free from material defects for a period of one (1) year. (The date of delivery is considered the date that our delivery service has recorded delivering your KEEPHIFI product as per delivery tracking, not any other date.). This warranty extends only to personal use & does not extend to any product that has been used for commercial use, rental use, or use that is not intended. To be eligible for warranty service, you must contact firstname.lastname@example.org under warranty, within the warranty period.
You can see more details in our Refund Policy