Image © TronsmartPricey for what it is
Tronsmart Sounfii R4 ENC Earphones are true wireless earbuds featuring quad-mic call noise cancellation, a 12mm composite titanium driver for balanced sound, and up to 28 hours of total playtime with the charging case.
The Tronsmart Sounfii R4 is a wallet-friendly true wireless pair that leans into a bass-heavy signature, making it a decent pick for casual listening on a tight budget. While it offers dependable low-end punch and a practical feature set for the price, it doesn't excel in any particular area and feels like a run-of-the-mill budget option rather than a standout.
Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.
| Driver | 12 mm dynamic |
|---|---|
| Driver type | dynamic |
| Driver size | 12 mm |
| Drivers per side | 1 |
| Frequency response | 20 Hz - 20 kHz |
| Impedance | 30 Ω |
| Driver | 12 mm dynamic |
|---|---|
| Driver type | dynamic |
| Driver size | 12 mm |
| Drivers per side | 1 |
| Frequency response | 20 Hz - 20 kHz |
| Impedance | 30 Ω |
| Bluetooth | 5.3 |
|---|---|
| Codecs | SBC, AAC |
| Multipoint pairing | No |
| Wireless range | 10 m |
| Battery life | 7 h |
|---|---|
| Battery incl. case | 28 h |
| Wireless charging | No |
| Active noise cancelling | No |
|---|---|
| ANC type | none |
| Transparency mode | No |
| Companion app | No |
| Custom EQ | No |
| Wear detection | No |
| Controls | touch |
| Voice assistant | Yes |
| Weight | 45 g |
|---|---|
| Case weight | 35 g |
| Water resistance | IPX4 |
| Foldable | No |
| Detachable cable | No |
| USB-C | Yes |
| Microphones | 4 |
|---|---|
| Call noise reduction | Yes |
| Call NR technology | ENC |
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1 source(s) feeding this product's score.
Video reviews we found, each condensed to its verdict. They do feed the HearWiki score, at a measured weight below what a published written review carries.
11:21The Tronsmart SFI R4 earbuds are a well-made, budget-friendly option that deliver powerful bass and high volume, making them great for bass-heavy music. While the sound is not high-definition and lacks brightness in the highs, the overall value and performance are solid for the price.
Summaries are AI condensations of each video's own conclusion, not transcripts. Titles, thumbnails and view counts belong to their channels.
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