• type: stereo headphones with mic
• speaker: 40mm
• sensitivity: 115db s.p.l at 1khz
• impedance: 32ohms
• frequency response: 20hz-20khz
• rated power: 40mw
• power capability: 100mw
• cable length: 1.5m
• microphone unit: 4.5mmx2mm
• plug type: 3.5mm stereo
wireless specifications:
• wireless version: bluetooth v5.0
• operation distance: 10m
• range of frequency: 2.402 to 2.480ghz ism band
• sensitivity: -85db
mp3 specifications:
• pc interface: usb2.0
• music format: mp3/wav
• tf card support: 128m-32gb
• rechargeable lithium battery: 400mah
what's in the box
1 x cat wireless bluetooth stereo headphones l450