JBL Wave Beam Headphones Black

In-ear, Driver size (mm): 8, Driver sensitivity at 1kHz/1mW (dB): 100, Dynamic frequency response range (Hz): 20 Hz – 20 kHz, Impedance (ohms): 16, Number of Microphones: 1, Bluetooth version: 5.2, Charging time (hours from empty): 2, Charging case battery life (max hours): 24, Maximum play time (hours): 32, IP Code: IP54