Voltage: 220-240V 50/60hz, Plug: EU Plug, Product Size(L * H): About 6cm * 19cm / 2.4″ * 7.8″, Material: stainless steel + plastic, Power: 9W.
Aliexpress
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Here are coupons that you can use.
Updated:
Banggood
Warehouse in China.
Link: SOKANY Professional Electric Hair Clippers
$9.23 with coupon: BG75597c
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Do you need price history chart (for all/most countries) for SOKANY Professional Electric Hair Clippers? There we go. The lowest price was: $10.26.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).