External power bank 4000mAh, universal power bank, mobile power supply for all smart phone

Model Number: C-0511-#5417 Brand Name: OKZU Key Specifications/Special Features: 2016 hot model portable power bank 4000mAh, OEM power bank China factoryProduct detailsNew premium slim 5000mAh RoHS power bank chargerModelno.: 0511Batterytype: Li-polymerCapacity: 5000mAhInput:5V/1000mA (micro USB)Output: 5V/1000mA (built-in cable)Certification: CE/RoHS/FCC/UN38.3/MSDSLead-time: 3-7 days (instock)
Full protection: PCB built-inshortcircuit,overcharge,
discharge, current&loadprotection

All power bank used grade A certificated batteries. Full aging test before shipment
Questions/answer
1.Are you china manufactureror Trading Company?
We are an over 10 year professionalpower bank manufacturerin China.Welcome oversea client visit us anytime!
2.Can I have custom logo on power banks?
Yes, we can do anycustom logo on power bankfor you, such assilk-screen, full color printing, embossed printing and laser curve.
3.How could I get samples or free sample?
We may offerfree sampleof casing with your logo or patterns.
Mixed samples are acceptable.
4.What is the bulk order delivery time?
Delivery timeis about 3-5 days for most stock goods.
Lead timeformass order ornew productsis about 5-10 working days.
5.How can I do the payment?
Our payment support Bank, PayPal, T/T, Western Union and Escrow
6.How about the delivery method & express details?
Delivery method:
Internationalexpress air shipment sea shipment

Packaging & delivery
Packaging details:
Giftbox+blister or do custom package as you like
Delivery detail:
5 days confirmed payment