PX 100-II I is perfect for travel, folds to fit in your pocket.# button controls are intergrated into the cable for ease of use.

CC520 Over the Head Binaural Telephone Headset with UI760 Interface/Amplifi er SN/KIT6TThe Sennheiser CC520 is an extremely robust binaural telephone headset that provides excellent sound and is comfortable to wear. The durable construction makes it perfect for any type of office or professional communication. The over-the-head, binaural telephone headset features an ultra noise-cancelling microphone and Sennheiser's exclusive ActiveGard protection technology. The UI760 Amplifier offers more connectivity, volume control and call options.UI760 Amplifier features: - ActiveGard safeguards the user from the effects of an acoustic burst - 300 degree adjustable microphone boom allows the mic to be positioned for optimal speech clarity - Headband has unique comfort pads and specially padded ear... Less

Sennheiser's PC230 Headset is an over-the-head, binaural gaming headset.

The HDA 200 headphones from Sennheiser provide reference- quality audio ideal for testing and calibration applications. Dynamic drivers provide a wide frequency response, suitable for high frequency audiometry. FEATURES: Very high passive ambient noise attenuation (based on PELTOR hearing protectors) Excellent reproduction of readings Suitable for high frequency audiometry, independent of positioning Soft, replaceable ear pads Padded headband for increased comfort Single-sided cable The HDA 200 complies with IEC 60645- 1Audiometric reference data for HDA 200 is included in two ISO standards: ISO 389-5: Acoustics - Reference zero for the calibration of audiometric equipment-Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz... Less

Sennheiser CC510 Over the Head Monaural Telephone Headset with UI760 Interface/Amplifi er SN/KIT5The Sennheiser CC510 is an extremely robust monaural telephone headset that provides excellent sound and is comfortable to wear. The durable construction and connectivity and call options of the UI760 amplifier makes this combo kit perfect for any type of office or professional communication. The CC510 is an over the head, monaural telephone headset features an ultra noise-cancelling microphone and Sennheiser's exclusive ActiveGard protection technology.Two year warranty.Headset features: * ActiveGard safeguards the user from the effects of an acoustic burst * 300 degree adjustable microphone boom allows the mic to be positioned for optimal speech clarity * Headband has unique comfort... Less

This folding headset features an integrated smart remote with microphone that lets you control the audio features of most Apple iPod , iPhone and iPad models.

The DWPRO2 is a premium dual-sided DECT wireless headset for your desk phone and softphone. Ultra-fast recharging on any existing DW Series base station. Compatible with handset lifter HSL10 for remote answering/termina tion of calls. Extended

Bose OE2i audio headphones deliver your music with depth and clarity. Plus, you can enjoy convenient control of select Apple products � and take calls on your iPhone with one-touch ease. The inline remote and microphone let you control volume, track selection and voice applications. The headphones feature a contoured headband and soft ear cushions for a comfortable on-ear fit. The fold-flat, collapsible design lets you easily take them anywhere in the included carrying case. They come in your choice of Black or White. Experience these headphones for yourself, and discover why Bose headphones look, feel and sound like no other headphones you� ve tried before. Headphones that deliver the full, low notes of your music, reproduce high frequencies with more clarity and offer smoother audio... Less

The H2O Audio Surge Contact 2G waterproof headphones combine waterproof speakers with a waterproof inline mic, allowing you to stay connected and awash in great sound whether you're wet or dry. Waterproof design stands up to precipitation, perspiration, rinsing and full submersion to a depth of 12 ft. Waterproof inline mic with cable clip features a convenient 1-touch answer/end button. 5 sets of elastomer earplugs range in size from XS to XL, ensuring a secure and comfortable fit. Sheared, ergonomic shape makes these headphones sit flush with the ears and promotes proper alignment of the earbuds with the ear canal. Sound-isolating, watertight earplugs deliver warm sound and dynamic bass. H2O Audio Surge Contact 2G waterproof headphones feature a silk-reinforced cable that is durable, yet... Less

The PC 151 stereo headset has the ultimate real-life sound that will make it seem like the action is right where you're sitting. A fantastic piece of technology that offers a high volume experience no one should have to live without. With the in-line volume control and the microphone mute switch you can keep sound at the right level or have a side conversation in privacy Equipped with a single-sided cable for maximum freedom of movement Headphones Frequency Response - 18 - 22,000 Hz Impedance - 32-ohms SPL (at 1 KHz, 1 Vrms) - 118 dB Microphone Frequency response - 80 Hz - 15,000 Hz Sensitivity - 38 dBV/Pa Impedance - 2k-ohms