Tronsmart Sounfii R4

★★★★★ ★★★★★

(3 reviews)

£25.00 RRP £ 30.00 Save £5.00

A quad‑mic ENC true‑wireless set with 12 mm titanium drivers delivering crisp mids and punchy bass. Sleek “space‑inspired” design, ultra‑light and stable fit. Offers around 26–28 hrs total playback with charging case

Colour

Changed due to selection

Creami White

Black

Want it delivered by tomorrow (Tuesday 27th Jan)?

Order by 12 hours 13 mins

Manufacturer Code	N/A
EAN	N/A

Driver	12 mm titanium composite
Bluetooth	v5.3
ENC	Quad‑mic environmental noise cancel

condition

Free next day delivery for orders over £150
Free 48 hour delivery for orders over £30

The length of warranty depends on the condition of the device.

Brand New - manufacturer warranty (min. 12 months)
Refurbished (Good or better) - 12 month warranty
Refurbished (Poor condition) - 3 month warranty

Please note that your warranty will not cover any faults due to impact, pressure, liquid damage, temperature, or any attempt (by you or a third party) to alter or repair the device.

Need to send your phone back to us? No problem! Returning an item is simple and hassle-free at The Big Phone Store. Here’s how it works:

You have 15 days from the date of purchase to notify us that you wish to return your order.
Once your return is approved, you have an additional 15 days to send the item back to us, totalling up to 30 days to complete your return.

Battery life?	Up to ~28 hrs total; about 6–8 hrs per charge.
Connectivity?	Bluetooth v5.3 ensures stable pairing.
Suitability for sports?	Light and ergonomic—fits well during movement.
Noise isolation?	Basic passive seal; no active ANC, only ENC for voice.

Design and Build

Experience the future of audio with the Tronsmart Sounfii R4 true wireless earbuds, designed for style and comfort. These Bluetooth earphones feature a sleek, space-inspired look in black or beige, weighing just 45g for all-day wear. With an IPX4 rating, they’re sweat-resistant, perfect for workouts or commutes. The ergonomic design and customizable ear tips ensure a snug fit, whether you’re hitting the gym or relaxing on a long flight.

Futuristic design in black or beige
IPX4 sweat and water resistance
Lightweight at 45g
Ergonomic fit with customizable ear tips

Feature	Details
Weight	45g (earbuds + case)
Materials	Plastic, ergonomic design
IP Rating	IPX4
Colors	Black, Beige

Audio and Features

Dive into crystal-clear sound with the Tronsmart Sounfii R4 earphones, powered by 12mm titanium composite drivers for deep bass and balanced audio. The quad-mic ENC (Environmental Noise Cancellation) technology reduces background noise by up to 90%, making calls sharp even in noisy environments. With Bluetooth 5.3 and smart touch controls, these earbuds offer seamless connectivity and easy access to voice assistants, perfect for music lovers and professionals on the go.

12mm drivers for rich audio quality
Quad-mic ENC for clear calls
Bluetooth 5.3 connectivity
Smart touch controls

Specification	Details
Driver Size	12mm titanium composite
Noise Cancellation	Quad-mic ENC
Bluetooth	5.3
Controls	Smart touch

Battery and Performance

Keep the music flowing with the Tronsmart Sounfii R4’s impressive battery life. These true wireless earbuds deliver up to 7 hours of playback per charge, with the 400mAh charging case extending it to 28 hours. Ideal for long commutes or workouts, they recharge quickly via USB-C. Users praise their reliable performance for calls and music, though some note the case’s lid design could be smoother to open.

7 hours per charge
28 hours with charging case
USB-C charging
Reliable for calls and music

Feature	Details
Battery (Earbuds)	35mAh per earbud
Battery (Case)	400mAh
Playtime	Up to 28 hours total
Charging	USB-C

Pricing and Availability

The Tronsmart Sounfii R4 earphones are a budget-friendly choice for premium audio, retailing at around $16.99 on major platforms like AliExpress and Tronsmart’s official site. Early bird discounts have dropped them to as low as $11.99 during sales. Available globally, they’re a steal for anyone seeking high-quality Bluetooth earphones with noise cancellation at an affordable price.

Retail price: ~$16.99
Discounted to $11.99 during sales
Available on AliExpress, Tronsmart site
Global shipping options

Detail	Information
Price	$16.99 (discounted to $11.99)
Availability	Tronsmart site, AliExpress, Best Buy
Shipping	Global

Why People Love Us

Trusted for our quality, loved for our service. We deliver excellence every step of the way.

Naomie

Posted on Sep 26, 2025

The Tronsmart Sounfii R4 gives me loud and balanced audio. My Tronsmart Sounfii R4 is easy to use and reliable.

Rebecca

Posted on Sep 26, 2025

I’m happy with the design of the Tronsmart Sounfii R4. My Tronsmart Sounfii R4 charges fast and plays for hours.

Harvey

Posted on Jul 28, 2025

Tronsmart Sounfii R4 earbuds provide clear sound, great bass, and good call quality with effective noise suppression and comfortable and stylish design.

Tronsmart Sounfii R4

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