Edifier CC200 Wireless Mono Headset Technical Specification Wireless Bluetooth V5.0 Bluetooth Protocol A2DP AVRCP HFP Effective Distance 10m Playtime (Hours) Talk Music(at 80% volume) 29h 64h Battery Capacity 400mAh Charging port USB-TypeC Input 5V 500mA Charging Time Around 1.5h Audio Coding SBC Driver 30mm Dynamic Impedence 32Ω Output Sound Pressure Level 94±3dB SPL(A) Frequency Response 20Hz-20KHz Mircophones 2 Microphone sensitivity -37±1.5dB IP Rating N/A Weight Around 73g Dimension (L x W x H mm) 175mm*160mm*60mm Box Content Item Quantity Headphone 1 Charging Cable 1 User Manual 1 Inner Carton 194mmx177.5mmx68mm (LxWxH), Around 250g (gross weight)