- Risk-free 8-week trial
- Free return shipping
- In-house customer service
- More than 40 years of expertise
Highlights

Why we love this product
The REAL BLUE IN simply does it all. Whether chilling in the city, jogging in heavy rain or simply watching Netflix on your laptop: With its long battery life, IPX7 certification and legendary Teufel bass, you have the freedom to listen to whatever you want. Anytime.
Key advantages at a glance
- Top-of-the-range in-ear headphones with flexible wearing options for optimal fit in any activity
- Linear HD coaxial drivers: one tweeter and one mid-woofer per earphone for detailed, silky highs and deep, dry bass
- Bluetooth with apt-X® and AAC for music streaming in CD-like quality from Spotify, Amazon Music, YouTube, Apple Music and co., video sound is transmitted lip-synchronously
- Waterproof according to IPX7, headphones hold together magnetically and preventing them from getting lost
- Run times of up to 10 hours, auto-play function as soon as the headphones are paired, in-line remote control for music control and calls
- Handsfree with Qualcomm® cVc™ technology for wireless calling, skype, Facetime, voice control via Google/Siri in high sound quality
- ShareMe function: connect two REAL BLUE IN wirelessly with a smartphone, Teufel Headphones app offers various setting options
- Fit adapters (Pinna piece, Hook and 4 Ear-Tips) for heavy workouts, soft workouts and chilling out, stylish, slightly transparent cable protection, headphones available in black and white
Features
All technologies at a glance



Your daily portion of freedom
The all-in-one package, the all-rounder, the always-on headphones - call it what you will. The REAL BLUE IN is all of that. And thanks to the different fit adapters, it can do it all.
Always fitting
Different fit adapters ensure optimal hold for each application.

Pinna piece: For light workouts, never presses. Only falls off when the gravity decreases.

Without: classic fit for long-wearing sessions. Four ear-tip sizes included.

With hook: for heavy workouts. Always holds. Even on J-class planets or on Knowhere.
Bluetooth: high fidelity wireless audio
Our products provide clean, stable Bluetooth connection with minimal power consumption at ranges from 10 meters and up.


Stream music, movies, or games from your smartphone, tablet, laptop, PC or Mac.
All operating systems supported.
Perfectly synced
The sound and video always match whether you're gaming or watching TV.
AAC
AAC is now a widely used Bluetooth codec, similar to Qualcomm's apt-X, which provides CD-like wireless audio transmission, as long as both transmitter and receiver support the codec. AAC is supported by Android but mainly by iOS devices.
Qualcomm aptX
Qualcomm aptX is a Bluetooth codec which, similar to AAC, delivers CD-quality audio wirelessly. Both sending and receiving device must support this codec in order to use it. AptX is supported by Android devices as well as Mac OS.

Talk to me
Qualcomm's built-in CVC noise and echo cancellation ensures high-quality voice and phone calls. So you're easy to understand even in noisy environments.


Further functions
Included components
- 1 × USB-C charging cable for REAL BLUE IN
- 1 × Pouch for REAL BLUE IN – Black
- 1 × REAL BLUE IN pack incl. tips/hook/pinna piece – Silver White
Specifications
Accessories
All necessary accessories are included in the delivery.