SPECIFICATIONS

Brand Name: Tronsmart

Style: In-ear

Vocalism Principle: Dynamic

Origin: Mainland China

Active Noise-Cancellation: No

Material: Metal

Hign-concerned Chemical: None

Control Button: Yes

Communication: True Wireless

Volume Control: No

Category: Earphones & Headphones

Certification: CE

Certification: FCC

Certification: RoHS

Number Of Drivers: 2

Plug Type: none

Impedance Range: up to 32 Ω

Support Memory Card: No

Waterproof: Yes

Frequency Response Range: 2402 - 2480

Magnet Type: Neodymium

Voice assistant built-in: no

Wireless Type: bluetooth

Package List: User Manual

Package List: Charging case

Package List: Charging Cable

Height[mm]: 50

Width[mm]: 80

Codecs: sbc

Driver Diameter: 13

Resistance: 3

Depth[mm]: 80

Sensitivity: 5

Is wireless: Yes

Weight[g]: 120

NFC Technology: no

Connectors: Type c

Bluetooth Version: 5.3

Battery life up to[hours]: 28

Total Harmonic Distortion: 5

Charging Method: Charging case

Max Output: 5

Support APP: No

Function: For Internet Bar

Function: Monitor Headphone

Function: for Video Game

Function: Common Headphone

Function: Sport

Battery Capacity[mAh]: 3.7V/400mAh

Maximum wireless range[m]: <10m

With Microphone: Yes

Features: waterproof

Features: With Microphone

Model: Sounfii R4

Color: Beige, Black

Bluetooth Version: 5.3

Audio Codec: SBC

Driver: 12mm Composite Diaphragm

Earbuds Playtime: 7 Hours

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

Earbuds Battery: 3.7V/35mAh

Charging Case Battery: 3.7V/400mAh

IP Rating: IPX4

Net Weight: 45g

Gross Weight: 120g

Frequency Band: 2402-2480MHz

Maximum Transmit Power: 5dBm

How to operate Sounfii R4 Earphones?

Tronsmart Sounfii R4 Earphones Wireless Earphones with Bluetooth 5.3, Quad-Mic Call Noise Reduction, 28H Playtimes

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

Bluetooth5.3 allows it to maintain seamless connection.

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