Earaku Bluetooth Open Ear Headphones [Ultimate Sound Experience & Industry-First Multifunctional Touch Screen] Wireless Earphones, Bluetooth Earphones, Noise Canceling, Bluetooth 5.4, Automatic Pairing, Microphone, ENC Call, HiFi, Canal Type, LED Display, Type-C Charging, Small and Lightweight, Single/Both Ears, Convenient to Carry, AirCuff F301 (Black) Color: Black Headphone Type: Ear-hook Model Name: F301 Connectivity Technology: Wireless Included Components: Instruction Manual [Earaku's Unique Incus Algorithm Technology - Amazing Audio Experience] The Incus algorithm technology adopted by the "Aircuff" OWS earphones automatically adjusts the output levels of high, mid, and low frequencies according to the actual sound source and output sound pressure, optimizing the balance of the three frequency bands. Always provides a comfortable and immersive listening experience. DSP Amplifier Function & Sound Leakage Prevention Design: The DSP amplifier optimizes the sound balance, improving the balance of low, mid, and high frequencies in the earphone output, and removes noise from the earphones through digital signal processing. [Multifunctional Touch Display & 10 Music Functions] Innovative and original design for 2025! The charging case equipped with a touch display reduces the frequency of taking out your mobile phone. [Type-C Charging, Visible Remaining Battery, Long-lasting Battery] The earphones themselves last for about 10 hours, meeting your daily usage needs. [Touch Control, Can Be Used with One Ear Only] With sophisticated touch control functions, basic operations such as music playback/pause, track forward/backward, answering and rejecting calls can be performed intuitively with just a slight movement of your fingertips. Bluetooth 5.4, Automatic Pairing When the Lid is Opened, and HD Calls That Last Forever: Adopts Bluetooth 5.4 technology. After a year of market testing, debugging of more stable, smoother, and more anti-interference wireless connections has been completed. [Lightweight Fit & IPX5 Waterproof Specifications] The weight of a single earphone is only 5.8g, and the total weight is only 53g, which is almost the weight and size of one egg, making it very convenient to carry when going out. OWS earphones with IPX5 waterproof function are resistant to daily rain and sweat.