Anker SoundCore mini, Super-Portable Bluetooth Speaker with 15-Hour Playtime, 66-Foot Bluetooth Range, Enhanced Bass, Noise-Cancelling Microphone - Black - Walmart.com
Amazon.com: JBL Clip 3, Black - Waterproof, Durable & Portable Bluetooth Speaker - Up to 10 Hours of Play - Includes Noise-Cancelling Speakerphone & Wireless Streaming : Electronics
Truck Scale Callbox Intercom with Horn Speaker
Cobra HighGear 4 in. 15-Watt Dynamic Noise Canceling CB Extension Speaker with Talkback HGS-500 - The Home Depot