Dimensions: 72*42*48mm. Weight: 32 g. BT v5.0. Chip: JL AC6926A. Supports BT, USB flash drive (<32Gb) modes. Type-C: 30W (for PD/PPS/quality control/FCP/AFC). USB: 18W (for QC/FCP/AFC). USB music interface output: supports only USB flash drives. PD30W + QC3.0 dual-port fast charging design supports fast charging for iPad/MacBook and other devices.