Jbl Tws 4 Wireless Bluetooth Earbuds

Driver size:5.8mm dynamic driver driver sensitivity at 1khz/1mw:96db dynamic frequency response range:20hz – 20khz maximum input power:15mw impedance:14 ohm bluetooth version:4.2 bluetooth transmitted power:0~10 dbm bluetooth transmitted modulation:gfsk, π/4 dqpsk and 8dpsk bluetooth frequency:2.402 ghz – 2.48 ghx battery type:lithium–ion battery (85ma/3.7v) jbl pure bass sound truly wireless hands-free stereo calls. 4h playback for earbuds