Etymotic hf2 Red Earphones

Leave it to the industry originators of in-ear canal headphone technology to invent one of the best-sounding, best isolating Mobile / Mp3 player earphone & mic systems on the market. Etymotic Research's new HF-2's offer excellent overall sound quality due to the balanced armature earpiece design based on their venerable Etymotic ER-4 audiophile earphones. In conjunction with a very voice-sensitive 'built-in' microphone, the Etymotic HF-2 quickly answers phone calls and controls your music at a quick flick of a music/call switch. Now you can communicate clearly even in extremely noisy settings without fear of missing that critical call.

The Etymotic HF2 provides three different sets of eartip sleeves including both large & small silicon 3-flange tips along with a pair of squishy-foam tips which help deliver thorough ambient noise-blocking ability and a comfortable personalized fit. The gold-plated straight 3.5mm 4-conductor plug is fully Apple iPhone compatible and will fit just about any mobile phone or music player accepting the 1/8" (3.5mm) jack connection. A spare set of earphone filters, a handy filter changing tool, and a travel pouch also come included in the HF-2 packaging. A 2-year product warranty remains standard with all Etymotic products.

Features:

• Compatible with iPhone and other mobile phones
• Response accuracy of Etymotic's ER-4 earphones
• Highest noise isolation of all competing headsets
• 3.5mm stereo plug makes the hf2 compatible with any music player

Specifications:

• Frequency response: 20 Hz -15 kHz
• Noise isolation: 35- 42 dB (depending on eartip used)
• Transducer type: Balanced armature
• Sensitivity (1 kHz): 105 dB SPL for a 0.1 VRMS input
• Impedance: 16 Ohms (nominal)
• Maximum output: 120 dB SPL
• Maximum continuous input: 0.55 VRMS
• Microphone sensitivity: -40 dB V/Pa
• Cable: 4 ft (1.2 m)
• Weight: 1.3 oz (37 g)

Includes:

• High-fidelity, hands-free, noise-isolating headset + earphones with 4 ft. cable
• Assorted eartips
• Filter tool with 2 replacement filters
• Storage pouch

Compatibility:

• Works with iPhone and other music phones that operate with a 3.5 mm/4-contact phone + stereo plug.
• Compatible with most music players (e.g., iPod, MP3, CD) that accept a 3.5 mm stereo plug.