Tronsmart Sounfii R4 wireless earphones in black charging case with two buds

Tronsmart Sounfii R4 wireless earbuds by Simples Market; 12mm composite titanium driver, quad-mic call noise reduction.

Tronsmart Sounfii R4 wireless earphones, black in-ear Bluetooth earbuds.

Tronsmart Sounfii R4 wireless earphones in black charging case

Tronsmart Bluetooth earphones Sounfii R4, black wireless earbuds with quad-mic worn by a woman outdoors

Tronsmart black wireless earphones with charging case, 28 hours total playtime

Tronsmart Bluetooth Earphones, black wireless in-ear buds with dual-mic noise reduction for crystal-clear calls

Tronsmart Bluetooth earphones, black wireless earbuds with smart touch control features

Tronsmart Sounfii R4 wireless earphones by Simples Market, beige earbuds with charging case, 28h playtime

Tronsmart Bluetooth earphones exploded view highlighting a 12mm composite titanium driver and layered components.

Tronsmart Bluetooth Earphones, black wireless earbuds with dual-mic noise reduction for crystal-clear calls

Tronsmart Sounfii R4 wireless earphones, black earbuds with Bluetooth 5.3.

Tronsmart Sounfii R4 wireless earphones with quad-mic noise reduction and 28h playtime for running, Simples Market

Tronsmart Sounfii R4 wireless earphones with quad-mic noise reduction, black charging case, 2 earbuds, 28h playtime

Tronsmart Bluetooth earphones, black wireless in-ear for running

Tronsmart Bluetooth earphones in cream charging case with two earbuds visible

Tronsmart Bluetooth earphones and black charging case; two items shown

Tronsmart Bluetooth earphones by Simples Market; wireless white earbuds with touch control and quadmic noise reduction

Tronsmart Bluetooth Earphones, black wireless earbuds with touch controls

Tronsmart Sounfii R4 wireless earphones, white, 28h playtime, quad-mic noise reduction

Tronsmart Bluetooth Earphones, black wireless in-ear earbuds worn by a woman using a smartphone in a car

Tronsmart Bluetooth earphones worn by a smiling man using a smartphone, black wireless earbuds for running

Tronsmart SOUNFII R4 wireless earphones with black charging case, purple box, USB cable, and five silicone ear tips

Tronsmart Wireless Earphones Bluetooth 5.3 Quad Mic Sports Running

Vendor: Retail

$24.81

~~$0.00~~

Shipping calculated at checkout.

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Color: Black

Black

Ships From: United States

United States

Free shipping to the U.S. & Europe, plus 12-day returns on approved unused items.

SPECIFICATIONS

Active Noise-Cancellation: No

Audio Codec: SBC

Audio latency: 60ms

Battery Capacity[mAh]: 3.7V/400mAh

Battery life up to[hours]: Earbuds: 7 Hours

Bluetooth Version: 5.3,Bluetooth 5.3

Brand Name: Tronsmart

Category: Earphones & Headphones

Certification: CE,FCC,RoHS

Charging Method: Charging case

Charging Time: 2.5

Codecs: sbc

Communication: WireLess

Control Button: Yes

Control Method: Push button

Department: Unisex-adult

Depth[mm]: 80

Driver: 12mm Composite Diaphragm

Driver Diameter: 13

Earbuds Battery: 3.7V/35mAh

Earbuds Playtime: 7 Hours

Earbuds With Charging Case: 28 Hours(50% Volume)

Features: Waterproof,With microphone

Frequency Response Range: 2402 - 2480

Function: For Internet Bar,for Video Game,Common Headphone,for Powersports,For Outdoor,For Office,For Study

High-concerned chemical: None

Impedance Range: up to 32 Ω

Is wireless: Yes

Magnet Type: Other

Material: Plastic

Maximum wireless range[m]: 10m-20m

Model: Sounfii R4

NFC Technology: no

Number Of Drivers: 2

Origin: Mainland China

Package List: User Manual,Charging case

Plug Type: NONE

Resistance: 3

Sound Isolating: no

Speaker maximum output power: 1

Style: Tws in-ear headphones

Support APP: No

Support Memory Card: No

Vocalism Principle: Balanced Armature

Volume Control: Yes

Waterproof: Yes

Weight[g]: 120

Wireless Type: Bluetooth

With Microphone: Yes

whether electrical: No

Tronsmart Bluetooth Earphones, Sounfii R4 Wireless Earphones with Quad-Mic Call Noise Reduction, 28H Playtimes, for Running

1. Quad-Mic Call Noise Reduction.
2. Bluetooth 5.3.
3. Ergonomic Fit & Peerless Design.
4. IPX4 Water-resistant.
5. Up to 28 Hours of Playtime.

Balanced Sound

12mm composite titanium driver delivers balanced sound with powerful bass.

Crystal-Clear Call

Dual-mic ENC technology provides enhanced clarity.

Effortless Pairing

Bluetooth 5.3 allows it to maintain seamless connection.

Comfortable Fit

Fits securely in you ears and prevents from falling off.

Extended Playtime

Peerless Design

Designed to be compact with stunning audio quality.

Smart Touch Control

Specifications

Model: Sounfii R4
Color: Beige, Black
Bluetooth Version: 5.3
Driver: 12mm Composite Diaphragm
Battery Capacity:
Earbuds: 3.7V/35mAh
Charging Case: 3.7V/400mAh
Playtime:
Earbuds: 7 Hours
With Charging Case: 28 Hours(50% Volume)
IP Rating: IPX4
Net Weight: 45g
Gross Weight: 120g
Frequency Band: 2402-2480MHz
Maximum Transmit Power: 5dBm

What's in the box

1 x Sounfii R4 Earphones

1 x Charging Cable

1 x Warranty Card

1 x User Manual

2 x Extra Pairs of Ear Tips

Limited time offer

Subscribe and place an order of $75 or more today, and we’ll send you a 10% discount code as a thank-you for your next purchase.

How long will it take to receive my order?

Most U.S. orders are estimated to arrive within 7–12 business days after processing. Orders to other eligible countries are also usually estimated at around 7–12 business days, depending on the product, carrier, and destination. However, delivery is not guaranteed, and some orders may take up to 7–25 business days because of carrier delays, customs, supplier processing, weather, or other shipping conditions.

What if my item arrives damaged, defective, or incorrect?

Contact us within 7 calendar days of delivery. Please include your order number, checkout email, clear photos or video proof, and a short explanation of the issue. If approved, we may provide a replacement, refund, store credit, partial refund, or another suitable resolution.

Where can I find the full policy details?

For complete details about returns, refunds, shipping, delivery, privacy, terms and conditions, legal notices, and customer support, please review our policies under the Legal & Support section in the footer.

These policies explain important information about order processing, delivery timeframes, return eligibility, refund rules, customer responsibilities, and how to contact our support team for help.

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