Model Z8 Time to market 2018.05 Type Headphones Headphone type Rear-mounted headphones Wear method Rear-mounted Headphone output source Communication device Plug diameter Wireless Plug type Bluetooth Whether wireless headphones, wireless headphones, microphones, or not, sound principle, circle iron Frequency response range 20-20K (Hz) Impedance 50 (Ω) Sensitivity -50 (dB) Earbuds/ear cover material SILICONE & ABS/PC Use Bluetooth headset, mobile phone headset, computer headset, voice headset, sports headset, music headset, wireless headset Packing list Headphone + data cable + manual color Purple, green, blue, gray