英文關鍵字
case
headphone
charging
led
indicator
earphone
headset
wireless
flash
device
portable
sound
headphones
smart
stereo
electronic
pods
digital
equipment
modern
music
technology
connection
audio
entertainment
object
accessory
closeup
gadget
phone
air
communication
mobile
charger
electrical
plastic
power
recharge
wire
earbuds
earbud
earplug
mic
smartphone
speaker
empty