K21 Professional Wireless 5.0 Earphones with 70-Day Standby Time, Noise-Canceling Microphone

Suitable for most brands without restriction to meet various application scenarios.
PREMIUM MATERIAL: Adopting 5.0 technology: Enables a stable signal and a working range of up to 8-10 meters in open areas. CVC noise reduction technology maximizes signal quality, resulting in clearer and more stable phone calls.
FULLY ADJUSTABLE and comfortable: The 180-degree rotating earbud allows you to adjust the angle and position it in either your right or left ear for a comfortable wearing experience.
VERSATILE APPLICATIONS: Convenient to use: You can check the remaining battery power; a multifunctional button makes it easier to use than traditional earbuds with multiple control buttons. CD-style design, also pleasant to the touch, while preserving the integrity of the watch's components.
Multiple pairing: Supports pairing with 2 devices simultaneously.