Russian audio brand Radiotehnika has introduced its Cometa TB-22C in-ear headphones featuring a unique coaxial dual-driver design. Priced at 2490 rubles (around $33), these earbuds combine a 6mm titanium diaphragm for highs and a 10mm graphene diaphragm for bass, offering a frequency response from 20 Hz to 22 kHz. With 16 ohms impedance and 105 dB sensitivity, they deliver balanced sound directly from smartphones without needing an external amplifier.
- Dual coaxial drivers: 6mm titanium high-frequency membrane and 10mm graphene low-frequency membrane
- Lightweight design: 5 grams per earbud, total 16 grams
- Includes three sizes of silicone ear tips and a fabric carrying pouch
Coaxial driver design and sound performance of TB-22C headphones
The TB-22C’s coaxial layout stacks the titanium tweeter and graphene woofer to minimize interference and deliver a smooth frequency response with balanced tonal quality. This setup helps the headphones reproduce clear highs and rich lows consistently across the audible spectrum. The combination offers an audio experience that can rival more expensive earbuds with multi-driver configurations.
With a modest impedance of 16 ohms and a high sensitivity of 105 dB, these headphones deliver solid volume and clarity directly from most smartphones and portable devices-no amplifier necessary.
Ergonomics and controls of Radiotehnika Cometa TB-22C earbuds
The TB-22C headphones feature a 1.2-meter fabric-braided cable to reduce tangling, terminating in a right-angle 3.5mm mini-jack plug. An inline remote offers basic playback controls and a built-in microphone for hands-free calls and voice commands.
The earbuds’ housings combine plastic and an aluminum alloy with a matte finish for durability and style. Their ergonomic shape ensures a secure fit without excessive pressure, making them comfortable for extended listening sessions. Weighing just 5 grams each, they’re lightweight enough to stay in place without fatigue. The package includes multiple silicone tip sizes and a soft fabric pouch for storage.
Radiotehnika offers a one-year warranty on the TB-22C, available through authorized dealers across Russia.
In an international comparison, Radiotehnika’s TB-22C competes with budget earbuds from brands like Xiaomi, JBL, and Sony, delivering a dual-driver coaxial solution usually reserved for higher-end models. Russian listeners seeking affordable wired options may appreciate this combination of materials and driver technology, which is rarely seen at this price point abroad.
As headphone markets shift increasingly toward wireless models, Radiotehnika’s TB-22C stands out as a wired alternative that pushes technical design within a tight budget. It remains to be seen if Radiotehnika will expand this approach to wireless or higher-end products that could compete globally.