Description
Tronsmart Sounfii R4 true wireless earphones
In-ear true wireless buds with touch commands, sweat-rated protection, and a pocketable magnetic charging case for music, workouts, and phone conversations.
Audio and voice pickup
- 12 mm composite titanium drivers produce deep bass within a balanced overall signature
- Quad-microphone noise cancellation keeps your voice intelligible on calls in loud spaces
- On-board noise reduction technology supports cleaner everyday listening
Connection and controls
Bluetooth 5.3 links rapidly to your source device. Capacitive touch surfaces adjust volume, manage tracks, handle calls, and wake voice assistants.
Runtime and charging
- Roughly 8 hours listening on a single earphone charge
- Combined playtime reaches about 30 hours when using the charging case
- 400 mAh battery capacity as rated; USB-C fast charging refills power in minutes
- Magnetic case with a clear LED status indicator
Fit, finish, and durability
Space-themed exterior styling pairs with an ergonomic shell and interchangeable ear tips for secure wear during long sessions or exercise. IPX4 sweat resistance suits workouts and walks.
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