Model:AX9; Connection:Bluetooth 5.2; Frequency Response:20-20000; Impedance:32; Activity:Cycling,Trekking,Gym Workout,Jogging,Running,Outdoor,Driving,Everyday Use,Traveling,Airplane; Charging Port:USB Type C; Capacity:10; Type:Ear Hook; Wireless/Bluetooth Range:10; General Use:Mobile Phone Gaming; Communication:Wireless; Standby Time:180; Item Type:True Wireless Headphones TWS Earbuds; Brand:NIA; Features:LED Power Display,Smart Touch Control,with Charging Box,with Volume Control,with Microphone,Stereo; Listing Date:12/09/2022; Music Time:6; Bluetooth Codecs:Support AAC,Support SBC; Charging Box Capacity:400; Headphone Size (Single):32.11.5; Headphone Weight (Single):8.1; Charging Case Size:8.16.63.5; Charging Case Weight with Headphones:0.065