Amazon is having a great deal on their Echo Dots for prime members. These retail at $50, and are on sale for just $25. These were only this low earlier when you bought multiple on a deal. Shipping is free with prime.
Link to Echo Dot 4th Gen Amazon Deal
You can get a prime free trial here, (free to join Amazon prime trial). If you’re a student who hasn’t gotten prime, you can get a 6 month Amazon prime free trial here.