“Build Quality: Not much to say than a solid IEM. The outside is "gunmetal" it looks like metal and feels like metal, but then again. I have been fooled before. The clip ...is just a clip, no deficiencies or poor moving around from it. The L shaped 3.5mm jack is also good. No weird wiggling parts, feels and looks solid. As it's an earphone, this section is generally good. The tip of the earphone...” --bowei006
“The following is taken out of its context from my review here http://www.head-fi.org/t/687962/asg-2-ck100pro-and-ue900-reviews-the-dysfunctional-family I just thought that the CK100Pro deserved a review here. I don't own it but have auditioned it extensively over about 8 days. Though I just might buy it later... CK100Pro: The Sheldon Cooper of iems Contrary to the warm...” --MoonYeol
“I have 5 sets of the e30 with varying amount of time on them ranging from brand new to 500 hours and there is so much variation that I don't know which one to review here. But generally, I'd say the e30 is neutral/warm yet detailed with a pleasing full bodied sound. It's 'hi-fidelity' in the sense that it imparts virtually no sound signature/sound stamp of its own onto your music...” --thelostMIDrange
“First of all, I'd like to thank 'H20Fidelity' who recommended this IEM to me. I was not sure whether to go for this brand as i did not hear of it before. but thought of givin' them a try. Got it under 40USD. I had Sennheiser Precision 300-II before these and I liked them. The intention to purchase an IEM that was like Senn Precision 300-II was to have a pair of headphones that are just fun to...” --akshayshah12
New generic universal in-ear stereo headset.Frequency range: 15-22000Hz. DC resistance: 12±10%Ω. Sensitivity: 97±2dB.Cable length: 1.2m. Connection: 3.5mm plug. Supper bass response and outstanding clarity. Comfortable, sound-isolating ear-tips reduce noise. Noise isolation near -20dB.
If you want earbuds that will give you crystal clear audio at a great low price, the Audio Technica ATH-CK303M Earbuds is your choice. With a 20-20,000 Hz frequency response, gold plated connector, and a comfortable fit that provides maximum sound isolation, the ATH-CK303M Earbuds are an incredible value.