Basically copy coupon, view price history or create e-mail price alert. What is best price?
Aliexpress
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Latest price update (UTC time):
Charging voltage: DC 5V / 1A – 2A, Transmission frequency: 2.4GHz, HSP and HF, Frequency response: 20Hz – 20KHz, Transmission power: 1.49mW, Support for Bluetooth profiles: A2DP, Standby time: 240 hours, Remote control battery: 1x built-in CR2025, Battery: 3.7V / 2000mAh (attached), Bluetooth distance: 10m, Bluetooth version: 4.1, SNR: 80dB, Charging time: 2 – 3 hours, AVRCP, Charging plug: Micro USB, Output power: 5Wx 4
Price history and price alert
Price history (for all/most countries) for Alfawise BS-28B Bluetooth Soundbar is here.
Price records source(s): Gearbest
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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)).