Sennheiser HD 1 In-Ear Wireless Headphones (Black/Red)

Model: 507433 UPC: 4044155222630 Item: 167852


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Sennheiser HD 1 In-Ear Wireless Headphones Overview

Combining the optimal sound quality you crave with the wireless portability you need, these Sennheiser HD 1 In-Ear Wireless Headphones are ideal for athletes, runners and anyone who needs a pair of quality headphones while on the go. With a 10-hour battery life, integrated microphone and comfortable wireless design, these in-ear headphones are the epitome of comfort while also providing exceptional audio. With four sizes of tips, these ear buds conform to the shape of your ear to block out unwanted noise and let you focus on exactly what you want to be hearing. The microphone allows you to answer phone calls with ease, seamlessly transitioning from your favorite workout playlist to an important phone call without missing a beat. The neckband offers optimal support for the ear buds ensuring they do not fall out, while the wireless system frees you up from the hassle of tangled cords, so you'll never snag your headphones as you run again.

Product Information

Product highlights

  • Noise-cancelling design prevents external noise from penetrating headphones and ensures headphone volume will not disturb others
  • Replaceable ear buds and ultra-soft sheepskin neckband are comfortable against your ears and neck even after hours of wear
  • Wireless design features microphone and remote on neckband to answer calls when on the go
  • Bluetooth 4.1 connection and NFC one-touch pairing allows for wireless syncing with mobile device
  • Frequency response: 15 to 28,000 Hz
  • Sound pressure level (SPL): 112 dB SPL (1 kHz/1 Vrms) 
  • Total harmonic distortion (THD) of less than 0.5% (1 kHz/100 dB SPL)
  • Rechargeable lithium-ion polymer (170 mAh) delivers up to 10 hours of battery life on a single charge for extended use
  • USB charger offers lightening fast 1.5 hour charging 
  • Sleek and ergonomically designed headphones made from tough, high-quality materials
  • Weight: 0.68 lbs.
  • Warranty: 1 Year - World Wide Stereo is an authorized dealer for every brand we sell
  • World Wide Stereo 60-day guarantee and expert product support

Immaculate Sound for Music and Phone Calls

Sennheiser's top priority when designing headphones is ensuring that the sound quality is second to none. These in-ear headphones reflect that goal. Designed with superior acoustics for dynamic sound, these ear buds seamlessly blend thumping bass with delicate treble audio to ensure every genre of music sounds incredible.

Featuring stainless steel sound tunnels with a mirrored chrome finish, these ear buds handle any number of environmental conditions, allowing you to take them on your most intense workouts without worrying about compromising the sound quality. The wireless technology draws on the best of HD audio reproduction, preventing that static and distortion that often accompanies wireless devices. The noise-cancelling design of the ear buds prevents noise from escaping and disturbing others, while also blocking out external noise. As a result, every time you put on these wireless headphones, you'll be in your own world of auditory bliss.

Built to Complement Your Active Lifestyle

Designed for athletes and active individuals, these running headphones are the perfect accessory for your daily workout. With a powerful battery that can support up to 10 hours of playback, these headphones are sure to last through your longest workouts. From running outdoors to lifting weights at the gym, they offer unmatched comfort and stability, ensuring they will stay in your ears with little effort. The ultra-soft sheepskin nappa leather stitched neckband is comfortable against your skin and ensures your wireless headphones stay in place. Also, the ergonomic design can be worn for hours without becoming uncomfortable.

Featuring four different sizes of tips, the ear buds are designed to conform to your ear shape for exceptional comfort. These various sizes also let you choose which size you use for different activities, so you can use larger tips for more vigorous exercises to make sure they don't fall out. Even when worn for hours at a time, these ear buds are sure to be comfortable and sound incredible.

Extra Features for Added Convenience and Functionality

With Bluetooth compatibility and NFC one-touch pairing technology, you can easily pair these headphones with your mobile device, preventing the need for cords. The attached microphone lets you answer calls in a hands-free manner, so you'll never miss a beat, even while on the go. 

Not only that, but these ear buds have an intuitive Bluetooth system that gives you verbal warnings when the battery is running low, and even has vibration alters for incoming calls. The wireless design means you'll never have to worry about snagging your headphone cord while running or exercising, and tangled cords will be a thing of the past. 



  • Ear coupling: Ear canal
  • Transducer principle: Dynamic
  • Connectivity: Bluetooth 4.1, NFC
  • Supported profiles: A2DP + AVRCP + HSP + HFP
  • Supported Codec: SBC, AAC, apt-X
  • Charging time: Approximately 1.5 hours
  • Charging receptacle: USB micro type-B
  • Battery lifespan: 10 hours (A2DP/HFP)
  • Battery type: Rechargeable lithium-ion polymer (170mAh)
  • Weight: 0.12 oz.
  • Frequency response: 15Hz - 22,000Hz
  • Sound pressure level (SPL): 112dB (1kHz/0 dBFS)
  • THD (Total Harmonic Distortion) (1kHz, 100dB SPL): <0.5%
  • Microphone pick-up pattern: Omni-directional
  • Sensitivity (as per 121 TR 9-5): -44dB V/Pa

What's in the Box

What's in the Box:

  • HD 1 In-Ear Wireless Headphones
  • USB charging cable
  • Ear adapter set (XS, S, M, L)
  • Carrying case


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