Experience comfort, awareness, and clear sound with the Monster AC390 Bluetooth Open-Ear OWS Headphones, designed for users who need to stay connected to their surroundings while enjoying music and calls. The open-ear structure allows ambient sound to remain audible, making these headphones suitable for sports, commuting, and everyday use.

Unlike traditional in-ear earphones, the OWS (Open Wearable Stereo) design reduces ear pressure and improves long-term wearing comfort. This makes the AC390 ideal for extended listening sessions, outdoor activities, and users who prefer a safer, more natural listening experience.

⭐ Key Features & Benefits

• Open-Ear OWS Design – Keeps ears open to surrounding sounds for safety and awareness
• Bluetooth Wireless Connectivity – Stable connection for music, calls, and media
• ENC Noise Reduction – Helps improve voice clarity during phone calls
• HiFi Sound Tuning – Balanced audio with clear mids and crisp highs
• Lightweight Sports Design – Comfortable fit suitable for movement and workouts
• Touch Control Support – Convenient control for calls, music, and playback
• Low Pressure Wearing Experience – Suitable for long hours of use

⭐ Ideal Use Scenarios

• Running, walking, cycling, gym training
• Outdoor sports and fitness activities
• Daily commuting and office use
• Users who prefer open-ear comfort over in-ear headphones

⭐ Design & Build

• Ergonomic open-ear structure designed for stability
• Durable housing suitable for active lifestyles
• Comfortable fit that does not block the ear canal

⭐ Compatibility

• Compatible with most Bluetooth-enabled devices
• Suitable for smartphones, tablets, and laptops

⭐ Package Includes

• 1 × Monster AC390 Open-Ear Bluetooth Headphones
• 1 × Charging Case
• 1 × Charging Cable
• 1 × User Manual

[Ergonomic Design / Comfortable to Wear]

The lightweight body feels custom-fit for your ears, staying comfortable even during extended use.

[13mm PU Titanium Composite Diaphragm]

Features a black film PU titanium composite vibration unit with an integrated oxygen-free copper multi-track voice coil for rich and detailed sound

[6th Gen DNC Intelligent Noise Cancellation]

Equipped with the 6th generation DNC digital noise cancellation system to intelligently filter ambient noise and deliver clearer, purer sound.

[Fingertip Dance / Stress-Relief Tool]

With 360° infinite rotation, it's the perfect choice to enjoy music while unwinding anytime, anywhere.

[New Bluetooth 6.0 / Fast & Stable Connectivity]

Step into a new era of connection with Bluetooth 6.0—offering superior anti-interference, lower power consumption, and faster transmission speeds.

[Lightweight & Comfortable / Compact and Exquisite]

Each earbud weighs only about 5g—ultra-light for long-lasting comfort, yet powerful enough to capture every musical detail.

[Exclusive Liquid Silicone Lanyard]

Comes with a soft, skin-friendly liquid silicone lanyard for a secure fit and stylish convenience.

[Long-Lasting Battery Life]

Equipped with a high-capacity battery for extended music playback—enjoy your tunes without interruptions.

[IPX5 Waterproof Design]

Built with professional waterproof materials and technology—your ideal companion for outdoor activities and sweat-heavy workouts.

[Smart Touch Control / Easy to Operate]

Simply tap with your fingertips to play, pause, switch songs, and more—effortless control at your touch.