Bluetooth Version:40Frequency Range:2.4GHz-2.48GHzFrequency Response:20Hz-20KhzOperation Disance:Up To 10m(Free Space)Bluetooth Profiles: A2D、AVRCP、HSP、HFPTalk/Music Tme: Up To 180hrsSpeaker: 10mm 32 Diamond Cut Surface、Super Small And Unique Appearance Design PatentCrystal Clear And Translucent Amber ColorErgonomic Design 、Wearing ComfortableMega Bass StsreoLow Power Consumption 、Super Long StandbyCVC 60 Noise Reduction 60IOS Battery Power Aisplay