[Engineered for Sports] - Designed for active lifestyles, the HD-100 wireless neckband earbuds stay secure and comfortable during running, HIIT, cycling, and high-movement workouts. The lightweight design reduces fatigue, while the IP67 rating protects against sweat, rain, and dust for long-lasting performance indoors and outdoors.

[Immersive Spatial Audio with Dynamic EQ] - Powered by 11mm dual-magnetic drivers, these Bluetooth earphones deliver powerful, balanced sound with crisp highs, rich vocals, and deep bass. 360° spatial audio enhances immersion, while the Truefree App’s dynamic EQ restores high-frequency details for a more natural and surround-sound experience.

[20 Hours Playtime & Fast Charge] - Enjoy up to 20 hours of listening time on a single charge. The HD-100 wireless sports earphones are perfect for workouts, commutes, outdoor adventures, and daily use. Recharge quickly via USB-C. A quick 10-minute USB-C fast charge gives nearly 5 hours of playback, keeping you powered through multiple sessions with minimal downtime.

[AI-Enhanced Calls & Bluetooth 6.0] - Adopting a high-sensitivity microphone and an AI noise-cancellation algorithm, the HD-100 captures your voice clearly, ensuring uninterrupted calls even in noisy environments. The latest Bluetooth 6.0 technology provides a stable, low-latency connection for smooth streaming and reliable communication.

[Multipoint Connection & App Controls] - Dual-device connection allows you to connect to two devices simultaneously and switch seamlessly between your phone, laptop, or tablet. Use the Truefree App to personalize EQ, adjust sound presets, and fine-tune your audio settings to match your preferences.

[Customized Fit for All-Day Comfort] - Built-in magnets keep the earbuds together for easy carrying. Multiple soft silicone ear tips and fins ensure a personalized, comfortable fit for long listening sessions. The in-line button controls let you manage music, volume, and calls effortlessly.