Specifications: Brand Cyboris Model S2 Color Black Power 10w*2 Driver Size 45mm*2 Net Weight (g) 290g Dimensions 172*47*68mm Microphone Yes Volume Control Yes bluetooth Version V5.1 Supported Profiles HSP/HFP/A2DP/AVRCP Support Audio decoding APT, AAC Transmission Distance 33feet (10m) Frequency Response 120-18k Hz Battery Capacity 1800mAh Charging Time (h) 3h MusicTime 4-10h Charging Interface Type-c PackageIncluded: 1*Cyboris S2 20W Portable Speaker 1* Charging Cable