UGREEN WS209 HiTune S3 Open-Ear True Wireless Bluetooth Earbuds – Black (45785)

The UGREEN WS209 HiTune S3 Open-Ear True Wireless Bluetooth Earbuds are designed for users who want comfort, safety, and high-quality audio during daily activities and workouts. Featuring an innovative open-ear clip-on design, these earbuds sit securely on the ear without blocking the ear canal, allowing you to stay aware of your surroundings. With powerful 12mm dynamic drivers, AI-enhanced call clarity, stable Bluetooth connectivity, and long battery life, the HiTune S3 is an excellent choice for sports, commuting, and all-day listening.

Product Features

Open-Ear Clip-On Design for All-Day Comfort

The HiTune S3 features a C-shape open-ear design that rests gently on the ear edge instead of inside the ear canal. This design reduces ear fatigue, enhances comfort during long use, and improves situational awareness for outdoor activities such as running, cycling, and walking.

Powerful 12mm Dynamic Drivers

Equipped with precision-tuned 12mm dynamic drivers, the earbuds deliver deep bass, clear mids, and detailed highs. Directional sound technology focuses audio toward the ear while minimizing sound leakage for a more private listening experience.

AI Noise Reduction for Clear Calls

Dual AI-powered microphones work together with environmental noise cancellation technology to reduce background noise during calls. This ensures clear voice transmission even in busy or windy environments.

Stable Bluetooth Connectivity with Multipoint Support

Using advanced Bluetooth technology, the HiTune S3 provides a stable, low-latency wireless connection. Multipoint connectivity allows the earbuds to connect to two devices simultaneously, making it easy to switch between a smartphone and a laptop.

Low-Latency Game Mode

A dedicated low-latency mode improves audio and video synchronization, making the earbuds suitable for mobile gaming and video streaming with reduced delay.

IPX5 Water Resistance for Active Use

With an IPX5 water resistance rating, the earbuds are protected against sweat and light rain, making them ideal for workouts, outdoor training, and everyday use.

Long Battery Life with Fast Charging

The earbuds offer extended listening time and quick charging support, ensuring reliable performance throughout the day with minimal downtime.

Product Specifications

• Model Number: WS209 / 45785
• Product Type: Open-ear true wireless earbuds
• Driver Size: 12mm dynamic drivers with bio-diaphragm
• Frequency Response: 20Hz – 20,000Hz
• Impedance: 16 Ohms
• Bluetooth Version: 5.4 (some variants 5.2)
• Bluetooth Codecs: SBC, AAC
• Wireless Range: Up to 10 m (unobstructed)
• Noise Control: AI noise reduction and environmental noise cancellation for calls
• Microphones: Dual AI-powered microphones
• Audio Latency: As low as 80 ms in game mode
• Water Resistance Rating: IPX5
• Weight: Approximately 5.3 g per earbud
• Battery Capacity (Earbuds): 50 mAh each
• Battery Capacity (Charging Case): 500 mAh
• Playback Time (Single Charge): Up to 7.5 hours
• Total Playback Time (With Case): Up to 30 hours
• Charging Port: USB Type-C
• Fast Charging: 15 minutes for up to 2 hours of playback
• Color: Black
• Compatibility: Android and iOS devices