Model:AKZ -S12; Connection:Bluetooth5.0; Frequency Response:20-20000; Impedance:16; Activity:Sleeping,Cycling,Everyday Use,Traveling,Yoga; Charging Port:USB Type C; Capacity:40; Type:In Ear; Wireless/Bluetooth Range:10; General Use:for Mobile Phone; Communication:Wireless; Standby Time:50; Item Type:True Wireless Headphones TWS Earbuds; Features:Long Battery Life,Smart Touch Control,Auto Pairing,with Charging Box,Sports,Stereo; Listing Date:12/21/2022; Music Time:3; Charging Box Capacity:300