Compare Sennheiser CX 400BT [Charging Case]

[[{"Ft":"Connectivity","Fn":"Ports","Fv":"USB-C"},{"Ft":"Connectivity","Fn":"Wireless Connectivity","Fv":"Bluetooth 5.1"},{"Ft":"Construction","Fn":"Drivers","Fv":"Sennheiser 7mm dynamic driver"},{"Ft":"Construction","Fn":"Headphone Type","Fv":"In-ear, closed"},{"Ft":"Dimensions","Fn":"Size | Depth","Fv":"33.8 mm"},{"Ft":"Dimensions","Fn":"Size | Height","Fv":"42.3 mm"},{"Ft":"Dimensions","Fn":"Size | Width","Fv":"59 mm"},{"Ft":"Dimensions","Fn":"Weight","Fv":"2x 6g (earbud) + 37g (charging case)"},{"Ft":"Function","Fn":"Bluetooth Codecs","Fv":"SBC, AAC, aptX"},{"Ft":"Function","Fn":"Bluetooth Profiles","Fv":"A2DP, AVRCP, HSP, HFP"},{"Ft":"Performance","Fn":"Battery Life","Fv":"7 h with earbuds, 20 h with charging case"},{"Ft":"Performance","Fn":"Charging Time","Fv":"1.5 h"},{"Ft":"Performance","Fn":"Frequency Response","Fv":"5 Hz - 21 kHz"},{"Ft":"Performance","Fn":"Microphone Frequency Response","Fv":"100 Hz - 10 kHz"},{"Ft":"Production","Fn":"Availability","Fv":"2020-09-15"},{"Ft":"Production","Fn":"Debut","Fv":"2020-09-01"}]]