Docooler&reg; Letv Type-C Headsets Digital Wired Control CDLA for Letv Max2 2 2 Pro Type-c Smartphone It support CDLA all-digital lossless audio. Dual-back cavity structure design, enhance the bass while ensuring less distortion. Support Hi-Res 96K/24bit output, let you enjoy the most authentic music. Dupont special diaphragm technology to optimize tune. Semi-in-ear design to effectively avoid stethoscope effect, comfortable to wear.