Monster Open Free AC210 Bone Conduction Bluetooth Earphones – Wireless Sports Headphones, IPX5 Waterproof, Touch Control

Enjoy Music & Calls—Without Blocking Your Ears or Missing a Beat
Tired of uncomfortable earbuds that slip or isolate you completely from your surroundings? The Monster Open Free AC210 Bone Conduction Bluetooth Earphones solve that problem by delivering high-quality audio outside your ear canal. This innovative design keeps you aware of ambient sounds while you work, run, or travel—perfect for safer workouts and a more comfortable fit.

Why You Need These Earphones

• Open-Ear Comfort & Safety: The bone conduction design sits securely on your ear without entering the ear canal, reducing pressure and letting you hear your surroundings—great for outdoor runners or busy commuters.
• Stable, Crystal-Clear Calls: Dual microphones and ENC noise reduction ensure your calls stay clear, even in noisy environments.
• Long Battery Life: With up to 20 hours of music playback and a fast-charging Type-C case, you can tackle the day without worrying about losing power.
• Sports-Ready & Waterproof: Rated IPX5 for sweat and water resistance—ideal for intense workouts, running in light rain, or wearing during your daily commute.

Key Features

1. Bluetooth 5.4
   • Fast, stable connections up to 10m away—no dropouts during calls or music playback.
2. ENC Noise Reduction
   • Environmental noise cancellation ensures you’re heard loud and clear.
3. Open-Ear Hook Design
   • Eliminates ear fatigue and helps prevent hearing damage; perfect for extended wear.
4. Touch Control
   • Easily manage music, calls, and volume with intuitive fingertip commands.
5. Ultra-Portable Charging Case
   • 300mAh built-in battery, providing convenient recharges and up to 20 hours of playtime total.

Specs at a Glance

• Model: Monster Open Free AC210
• Charging Case Battery: 300mAh (Built-In)
• Earphone Battery: 50mAh (Each)
• Playback Time: ~20 hours total, ~6 hours talk time
• Charging Time: 1–1.5 hours for earphones, 1–2 hours for charging case
• Waterproof Rating: IPX5
• Noise Reduction: ENC (Environmental Noise Cancellation)

Perfect for Your Active Lifestyle

From running and biking to working and gaming, these bone conduction headphones let you enjoy premium Monster sound quality in total comfort—without disconnecting you from the world around you.

Upgrade Your Audio Experience
Discover the future of wireless listening with Monster Open Free AC210 Bone Conduction Bluetooth Earphones and enjoy long-lasting battery life, crystal-clear calls, and a secure, open-ear fit—all in one sleek package.

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1 Charging box
1 Charging cable
1 User Manual