ULTRASONE On-Ear headphones:
Excellent sound to go!

Go Bluetooth – Excellent sound and wireless convenience for on the go.

With the Go Bluetooth, ULTRASONE is combining the first-class sound characteristics of Bluetooth aptX® with their own S-Logic® technology in a lightweight and mobile set of on-ear headphones.

Freedom when travelling

With the Go Bluetooth you can enjoy your favourite music on the go in the excellent sound quality delivered by ULTRASONE headphones. The Go, a set of on-ear travel headphones equipped with our patented S-Logic® Basic technology, have already been available since 2015. The new Go Bluetooth compliments the impressive sound characteristics of the Go with wireless aptX® Bluetooth transmission. So you can move around unimpeded and still enjoy music of the highest quality.

Living room to go

The ULTRASONE  Go Bluetooth makes it easy for you to feel comfortable when you travel. A closed construction insulates against outside noise and so helps you to relax, e.g. on long train or plane journeys. Patented S-Logic® Basic technology uses asymmetrically aligned sound transducers to create an auditory impression that is just like music played on speakers at home. This results in a particularly pleasurable sound experience. S-Logic® is also easy on the ears, as 3 to 4 dB less sound pressure is required to achieve the same perceived volume.

 Mobile sound experience

The Go Bluetooth’s compact form is deceptive, because inside it has a full-sized 40mm sound transducer, as with larger models. The musical character of this converter extends across the entire hearing range of 20 Hz to 20 kHz. Furthermore, the Go Bluetooth will captivate with a precise rendering of the soundscape and three-dimensional depth, all made possible by the decentralised placement of the sound transducers as part of the S-Logic® Basic technology. The musical stage can thus be envisioned in all its glory.

 Versatile and comfortable

Thanks to an integrated microphone, the ULTRASONE  Go Bluetooth can also be used as a headset for making phone calls. Its soft cushioning and low weight of just 162 grams allow for the highest possible wear comfort, even for longer periods of time, so that extensive telephone conferences or even long train and plane journeys will pose no problem at all. A sophisticated folding mechanism means the Go Bluetooth can be simply spirited away into your hand luggage when no longer needed. The battery can last for up to 17 hours of continuous operation – after that, the Go Bluetooth can even be used for longer using a conventional cable connection.

Go BluetoothGo BluetoothGo Bluetooth
  • Principle: dynamic, closed
  • S-Logic® Basic technology
  • Bluetooth Version: 4.1
  • Audio Codes: aptX
  • Bluetooth Profile: HFP / A2DP / HSP / AVRCP
  • Standby-period: approx. 350 hours
  • Music / Speaking time: approx. 21 - 23 hours
  • Charging time: approx. 2,5 hours
  • Bluetooth distance: approx. 20 - 30 m
  • Impedanz: 20 Ohm
  • Driver/Durchmesser: PET, 40 mm
  • Magnet: NdFeB
  • Frequenzbereich:20 – 20.000 Hz
  • Kennschalldruck (SPL): 101 dB
  • Gewicht (ohne Kabel): 162 g
  • 2-years guarantee

The Declaration of Conformity is available in our download area.

  • detachable approx. 1.15 m straight cable with gold plated 3.5 mm plug, microphone and remote control
  • USB charging cable
  • Transportation bag


at a price of 149,00 € incl. 19% VAT plus shipping costs

In den Warenkorb


The HFI 15G is a very lightweight and high-quality pair of small on-ear headphones with a 3-dimensional sound character.

This is the smallest headphone of the ULTRASONE product lines, convincing with its pure and spacious sound. It is a lightweight open  headphones with a airy and spacious sound character. Perfect for watching movies and TV films.

The HFI 15G is therefore frequently used as a hearing aid while watching television. Like all ULTRASONE headphones, the HFI 15G headphones has the S-Logic technology included. Here you find the S-Logic Basic technology, which ensures the surround sound while listening your favorite music or watching you fave movie. This dynamic open on-ear headphone is equipped with a 1 m straight cable. Moreover you will get a 4 m extension cable for long distances between the television and your cozy sofa.

Ultrasone HFI 15G
  • Principle: dynamic, open
  • S-Logic® Basic  technology
  • Impedance: 32 Ohm
  • Driver/Size: Mylar, 40 mm
  • Magnet: NdFeB
  • Frequency range: 20 – 20.000 Hz
  • SPL: 96 dB
  • Weight (excl. cord): 85 g
  • 5-years guarantee
  • Adapter 3.5 mm/6.3 mm
  • extension cable (approx. 4 m)

kopfhoerer.de 08/2015

The HFI 15G is a lightweight and mobile companion.

mobilelife 01/2009

The Ultrasone is a lightweight headphone designed for mobile use,...


Order the ULTRASONE HFI 15G headphones

at a price of 89,00 € incl. 19% VAT plus shipping costs

In den Warenkorb