Based on this product's specifications, here are some alternatives and similar models
Mono Portable Speaker Boompods Beachboom Blue
Summary description:
The Boompods Beachboom Mono portable speaker in blue offers 5 W RMS rated power, a frequency range of 20 - 20000 Hz, and 2.2 Ω impedance. It features wireless connectivity (2.4 - 2.48 GHz) and is designed for mobile phones and smartphones. With a built-in 1200 mAh battery (4.44 Wh), it ensures long-lasting playtime. Volume control is easy with buttons, making it user-friendly for outdoor activities.