MAX 12M distance, SNR: ≥98dB, Net Weight: 160g, Frequency Response: 20Hz-20KHz(±1dB), Power supply: support 5.5x 2.1-2.5mm, bluetooth: 5.0 Version, Power Amplifier Chip: TPA3116, Power Supply: DC9V-24V (the voltage can not over 24V), Audio Inputs: 3.5mm AUX or bluetooth or USB or RCA or TF card or USB Stick, Audio Outputs: Banana Speaker Jacks, Output Power: 50Wx 2 (24V/4Ω load), Speaker Impedance: 4Ω-16Ω, Size: (W)110x (H)90x (D)50mm.
Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Only one coupon available!
Link: Banggood product page
1. ($33.64): BG589b2e
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGTPA3116, BGFCTPA, BG311611YB, BGCuponation10, BGHU0459, BGHONEY2110, BG63378d, 13f142, BG3cc06b, BGd886c5, BGAlerabat6, 2022ACTIESNL, Terence, BG5a19a4, Tabby20, 2203ActiesNL, BG1efeb0, MVC8SPRING, 8BGwbg2204, BG79be39, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BGJUNEGSG9, BGd0e600, Cuponation9, 9OFFSUMMER, BG8ReviTrage, BGcoupon8off, BGGutscheine, BG00c906, BG8OFFCOUPON, TTBLACK5
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – TPA3116 Class D Bluetooth 5.0 HIFI 2x50W Audio Amplifier [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for TPA3116 Class D Bluetooth 5.0 HIFI 2x50W Audio Amplifier is here. The lowest price was: $18.99.
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)).