You will enjoyed:

--Fast delivery , you will received the products within 7-10 days

(depend your destination ) by UPS/DHL/Fedex.

--Professional after-sales service . Our professional engineer will give

you 1-in-1 talk professional guidance if you have any questions .

--Long time warranty . You will enjoy 3-year after-sales warranty .

Attention :

--Pls choose the right dynamics range that you need ,we will send you

the products according to your order information .

QX65-S1 : 1310/1550nm ; 32/30dB

QX65-S2 : 1310/1550nm ; 35/33dB

QX65-S3 : 1310/1550nm ; 40/38dB

QX65-S4 : 1310/1550nm ; 42/40dB

QX65-S5 : 1310/1550nm ; 45/43dB