1.产品型号：Sennheiser Ie80
CX300 II 黑色
CX870 (基本同cx880):
Momentum over ear 黑红色/棕色
on ear 黑色/蓝色
Westone advantrue beta
AKG K7XX
1.产品型号：Ie80 7700
CX300II 1180
CX870 1500
Momentum over ear 6000
on ear 2900
Westone advantrue beta 1990
AKG K7XX 7800
3.购买时间、地点：Cx870 -Jr.com
adv beta - beach carema
k7xx