HUAWEI FreeBuds 5i TWS Bluetooth-compatible Wireless In-ear Earphone Noise Canceling Music Gaming Headset - Blue Try noise reduction,balanced noise reduction,and mild noise reduction. Three noise reduction modes can be selected independently When making a call,it supports dual-microphone noise reduction for calls Built-in 10 mm moving coil unit,with polymer composite diaphragm,three-frequency balanced,surging and powerful drums,shocking,more suitable for listening to pop music It has obtained Hi-Res certification,has a wide frequency response range,and cooperates with high-definition lossless audio sources to deliver full-link high-resolution sound quality HUAWEI FreeBuds 5i can connect two devices at the same time,convenient to use Specifications: Wearing method: In-ear Charging time: Charging the earphones with the charging box: about 60 minutes; empty charging box wired charging: about 110 minutes Battery capacity: Charging box: 410mAh; earphones: 55mAh Theoretical music playback: about 7.5 hours Theoretical call time: about 5.2 hours Spatial audio: not supported Dust and water splash resistance: support Call noise reduction: dual microphones Active noise reduction: in-ear light noise reduction Bluetooth-compatible distance: 10m Note: The music battery life data comes from Huawei Labs,under the conditions of medium volume,music using AAC encoding format,and noise reduction turned off. The actual battery life is affected by the volume,sound source,environmental interference,product functions,supporting equipment,system,usage habits,etc. The call battery life data comes from Huawei Labs,under the conditions of turning off noise reduction and adjusting the call volume to 50%,the actual battery life is affected by the volume,environmental interference,product functions,supporting equipment,system,usage habits,etc. Package included: 1 x Pair of Bluetooth-compatible Earphones 1 x Charging Case 1 x Type-C Charging Cable 3 x Pair of Eartips (S/M/L,M has installed on the earphones) 1 x Chinese User Manual