Description
Tronsmart Sounfii R4 True Wireless Earphones
True wireless earphones with balanced tuning, touch controls, and a compact charging case — built for daily listening, calls, and active use.
Sound & calls
- 12 mm composite titanium drivers for deep bass and well-balanced audio
- Quad-mic noise cancellation for clearer calls in noisy environments
- Rich, balanced audio with noise reduction technology
Wireless & durability
- Bluetooth 5.3 for instant connection
- IPX4 sweat resistance for workouts or walks
- Smart touch control for music, calls, and voice assistants
Battery & case
- Up to 8 hours playback on the earphones; up to 30 hours with the charging case
- 400 mAh battery capacity (as specified)
- USB-C fast charging
- Compact magnetic case with clear LED indicator
Design
Space-inspired exterior styling with an ergonomic shape and customizable ear tips for a secure fit during long sessions or workouts.
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