小米 Mi 10000 mAh power banks (18 watts output, support QC3.0), HK$180 (including Black silicone protection case /包括黑色矽膠保護套)
Highly recommended by the Hong Kong Consumers Council. Extremely good value for money.
Order hotline : 9559 8102 WhatsApp. Pick up at most MTR stations, East Rail preferred .