“ The PK3 is a great, warm earbud. It does vocals especially well because it is very mid-focused. It has impressive bass extension, not especially strong impact; the trebles are smooth and may roll off too soon for clarity and detail nuts. But the mids are what the PK3 are all about. ” --kmhaynes
PK2 earphones are the low impedance version of PK1. Although not as good as PK1, PK2's sound signature is similar to PK1. You don't have to drive PK2 with an expensive head-amp. If you are looking for something with high performance/price ratio, PK2 might be the best choice.
Technical Details * Impedance:32 ohm(at 1KHz) * Frequency response: 20-20,000Hz * Sensitivity:120 dB (at 1KHz) * Max Input Power: 400 mv
“ These were my sweetest sounding head-gear yet. It would be brilliant all-rounder if it would not require a portable amp for portable use. This is the first reason i left it, otherwise i almost got an ear infection from those foams.., they get dirty in a few weeks of massive use. I recommend them to clean, i boiled them in water. ” --angevoi
“ Well firstly this is not a true iem. The sound is about as great as one could get from an earbud. In my limited experience and without trying the pk1, I would say these are the finest buds you can buy. With that said, these are not for everyone, this is a niche product within an already niche market. I find driving it with my D12 anaconda makes for a pleasurable sound,...” --Jamesdeandoa
H2O Audio Surge Contact Waterproof Sweatproof Sport Headset with Waterproof Mic combines our leading waterproof speaker technology with an innovative in-line waterproof microphone, allowing you to stay connected while you submerse yourself in sound. Pair your iPhone, Droid, Blackberry or other music enabled phone with an H2O Audio Amphibx Waterproof Armband and you'll never have to worry...
H2O Audio H3 Waterproof Headphones let you listen to music while swimming with the optional H2O Audio waterproof housing. Their modular design allows you to use the headphones as standard earbuds, or with the detachable wrap-around sports band. Aquatic silencer earplugs reduce noise and seal out water. The reactive coiled cable eliminates tangles and provides flexible slack that moves with you.
“ Overall I have been satisfied with these phones. I would not recommend paying full price for them like I did. ” --Skoch
The Interval Waterproof Headphone System's sleek waterproof housing and integrated waterproof headphones attach to practically any swim goggle making it a low profile, hassle-free way to stay motivated during your next swim.