Bluetooth Earpiece with Soundcore A30i ANC Wireless Earbuds Bluetooth Headphones with Mic and Wireless Ear Buds (A3958) Soundcore A30i ANC Wireless Bluetooth Earphones with 46dB Noise Reduction and Adaptive ANC 46dB ANC depth is used to cut down on background noise. Adaptive ANC provides the best noise reduction experience by continuously monitoring ambient noise. Multi-mode ANC offers the best noise reduction effect in a variety of environments. Strong bass and incredibly clear sound: 6mm custom driver, compact, powerful. - Unique BassUp TMM technology for powerful bass and crystal-clear sound. Easy to carry and comfortable to wear: Its small size and light weight make it incredibly comfortable to wear. For the best portability, use a small lipstick case. Al-Powered Calls: improved calls with four microphones and a unique Al algorithm. - Waterproof IP54 Sweatguard TMM: