Model:M30 pro; Connection:Bluetooth 5.2; Frequency Response:20-20000; Impedance:32; Activity:Trekking,Gym Workout,Jogging,Running,Outdoor,Driving,Everyday Use,Traveling,Yoga,Cycling; Charging Port:USB Type C; Capacity:50; Type:In Ear; Wireless/Bluetooth Range:10; General Use:for Mobile Phone; Communication:Wireless; Standby Time:100; Item Type:True Wireless Headphones TWS Earbuds; Brand:CIRCE; Features:LED Power Display,Smart Touch Control,with Charging Box,with Volume Control,with Microphone,Stereo; Listing Date:08/29/2022; Music Time:4; Bluetooth Codecs:Support AAC,Support SBC; Charging Box Capacity:1200; Headphone Size (Single):22.21.8; Headphone Weight (Single):3.6; Charging Case Size:8.25.52.6; Charging Case Weight with Headphones:85