Superior Noise Cancellation: Experience unparalleled audio clarity with our advanced 6-microphone noise cancellation technology. This model effectively filters out ambient noise, so you can focus on your music or calls without distractions, even in noisy environments like busy streets or crowded commutes. Crystal clear calls: Enjoy crystal clear phone calls with built-in Environmental Noise Cancellation (ENC) technology. This feature effectively reduces background noise during calls, ensuring that your voice is transmitted with exceptional clarity, making it ideal for both personal and professional use. Long-lasting battery and comfort: Listen to your favorite tunes for up to 5 hours on a single charge, and extend your enjoyment up to 30 hours with the convenient charging case. The ergonomic design ensures a comfortable and secure fit for extended use, making these earbuds perfect for all-day use. Specifications: Size: Length: 5.6 cm, Width: 4.9 cm, Height: 2.7 cm Material: ABS+electroplating Charging: Type-c Bluetooth version: V5.4 Load times: 4 times Listen to music: approx. 5 hours Call: 3 hours Connection distance: 10M Waterproof level: IPX5 waterproof Battery life: 30 hours Charging box: 350 Earphone: 30mah 2c fast charging Package includes: Headphones x 1 data cable x 1 User Manual (English & Chinese) x 1 Warranty card x 1