Specifications: Brand Monster Model GT07 Color Black Wearing Type Earhooks Microphone Yes Volume Control Yes bluetooth Version V5.0 Supported Profiles HSP/HFP/A2DP/AVRCP Transmission Distance 33feet (10m) Frequency Response 20-20k Hz Battery Capacity Earbud: 100mAh*2 Charging Box: 500mAh Charging Time (h) 1-2h MusicTime 4-5h Charging Interface Type-C PackageIncluded: 1*Monster GT07 TWS bluetooth Earphone 1* Charging Cable