What do I need headphones for my iPhone?

I am interested in purchasing music headphones + microcontroller. Recently property Etymotic ER-6, but has lost in the iPhone buds. : [I want an improvement in the ER-6. I've been watching these two, that knowledge of these two companies. HF2 ™ Headset + Earphones: SE210MPA http://www.etymotic.com/ephp/hf2.aspx stereo sound isolation Mobile Handset: http://store.shure.com/store/shure/en_US/DisplayProductDetailsPage/productID.107538000 I am open to other suggestions such as headset is in $. 200 for what would be the best buy? And thanks in advance.

second.more loudness

UltraSound – Music for the Unborn Child $6.13 While many hospitals across the country send new mums and babes home equipped with discs of classical music to soothe and gently stimulate babies’ tender minds, Ultrasound brings together a delightfully well-rounded set specifically chosen for those still in the womb. Expectant moms will appreciate the effects of the mellow strains of Bach’s Suite No. 3, the delicate playfulness of Tchaikovsky’s “…

3M 90541-80025T TEKK WorkTunes Hearing Protector and AM/FM Radio $40.74 Protect your ears while keeping yourself motivated at your job site with your favorite tunes or radio programming with the 3M TEKK 90541-80025T WorkTunes with digital tuning hearing protector, which includes an integrated AM/FM radio and a stereo input jack for connecting an MP3 player. A great choice for use on construction sites (check your local regulations), in your workshop, or in your yard w…

Howard Leight 1030110 Sync Noise-Blocking Stereo Earmuff $23.99 Howard Leight Stereo Sync Black Earmuffs…

3M Peltor Optime 105 H10A Over-the-Head Earmuff $18.00 …

Baby Banz Hearing Protector Earmuffs …

Pillowsonic Stereo Pillow Speaker $10.66 The Pillowsonic features quality speakers that deliver crystal-clear sounds at gentle, safe volume levels. Resonating throughout even the plushest pillows, the audio is of excellent quality — encompassing the entire surface, allowing you to turn freely without missing a beat. Our speakers are so slim that you’d never know there is a powerful innovation under your pillow — except for the sounds t…

Sennheiser BA151 Rechargeable NiMH Battery $14.95 Sennheiser recommends this battery for owners of the RS 40, RS 45, RS 60, RS 65, RS 80, RS 85 wireless headphone systems and HDR 45, HDR 65, HDR 85 headphones. This battery is interchangeable so you can extend your listening time on these classic wireless headphones. Compatibility: RS 40, RS 45, RS 60, RS 65, RS 80, RS 85 wireless headphone systems Warranty: The BA 151 carries a 60 day warranty …

Panasonic RP-HT21 Lightweight Headphones with XBS Port $5.95 Take your music on the run with Panasonic’s lightweight, low-cost RP-HT21 over-ear headphones. Their large, 30 mm diaphragms offer full-bodied sound free of the harshness and discomfort that usually accompany earbud-style earphones. The headphones’ open-air design minimizes adverse resonances, and Panasonic’s XBS acoustic ports naturally emphasize bass frequencies for rich sound from nearly any so…

Belkin Speaker and Headphone Splitter $1.63 This Speaker and Headphone Splitter from Belkin lets you connect two mini-stereo headphones or speakers to the same jack on your iPod, portable cassette, or CD player. It features one male 1/8-inch miniplug and two female 1/8-inch ends. This splitter provides multiple-user listening enjoyment by connecting two headphones to a single iPod, and also works well with laptops….

Logitech USB Headset H530 with Premium Laser-Tuned Audio (981-000195) $33.00 LOGITECH H530 – HANDSET – WIRED – STEREO – 20 – 20000H530 – HANDSET – WIRED – STEREO – 20 – 20000 Manufacturer : LOGITECH UPC : 097855066497…