... link 3D glasses: 1.USB rechargeable,or battery we have both 2.light weight,good looking 3.High quality,SYNC perfectly DLP ... % -Power supply: CR2032 lithium battery or button cell -Battery working time: lithium battery , 40 hours;Button Cell, 210 hours;-Sync operation: VR -Working ... , especially ship by airpost.This model SG002, we have rechargeable style, also have batter style, you can chose as ...