Weight 450g, Size L 13.9cmx D 4.5cmx H 6.8cm, Play Time 8H, Bluetooth Version 4.1, Battery Capacity 1400mAh, Transmission Distance 10M, Output Power 3W, Material ABS Plastic.
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Aliexpress
There’re some similar (or not) items on Aliexpress
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Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($15.99): 13f142
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGAMOI, BGAM99, PICODICOM, BGAWBS, BGAM999, BGamoi1001, BGAM9, BGAMBSF, BGAMO9, BGAM5, BGHOMEAPP, bGhOnEy10, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13, BGLOAC1
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for AMOI Bluetooth Speaker Alarm Clock is here. The lowest price was: $9.55.
Price records source(s): Gearbest, 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)).