[New Year Sale] Ntaanoo Wireless Bluetooth 5.4 Headphones, Deep Bass Stereo Earbuds with 4 Noise Cancelling Microphones, IPx7 Waterproof In-Ear Headphones, 48 Hours of Playback Time, Compatible with Smartphones, Tablets, Sports and Exercise, Green.

Thanks to the 14.2mm speakers and triple-layer composite diaphragms, the K66 noise-cancelling earbuds deliver powerful bass, clear mids, and bright treble. These earbuds feature dual touch controls on both earpieces, allowing you to easily adjust volume, skip tracks, pause music, answer calls, and activate your voice assistant. With this intuitive touch interface, you never need to reach for your phone or fumble with physical buttons—control is always just a tap away.

Noise Reduction Up to 90%

The K66 features an advanced noise-cancelling system designed to block out a wider range of distracting sounds. No matter where you are, you’ll always enjoy the peace and quiet you need to stay focused. With ENC (Environmental Noise Cancelling) technology and 4 built-in microphones, you can minimize unwanted noise and enjoy crystal-clear audio whether you're commuting, working out, or simply relaxing.

Advanced Bluetooth 5.4 Technology & Auto Connection

Equipped with advanced Bluetooth 5.4 chip, the K66 delivers 2x faster transfer speeds than Bluetooth 5.3, offering more stable transmission, lower power consumption, and an ultra-low latency listening experience. Once connected for the first time, the earbuds will automatically link to your phone when you open the charging case. They will stay connected even if your phone is in your pocket, with a range of up to 33 feet.

Up to 48 Hours (8H + 40H) of Battery Life & Quick Charging

The earbuds provide 8 hours of playtime on a single charge, while the charging case offers an additional 40 hours, ensuring all-day audio. When placed in the case, the earbuds start charging. The 400mAh battery capacity of the charging case provides 5 full charges for both earbuds, with each earbud lasting 8 hours per charge. When you need more power, you can quickly charge for an extra 2 hours in just 10 minutes.

Ergonomic IPX7 Waterproof Design