mini ups

Jbl TUNE M65 - Adaptive Noise Cancelling with Smart Ambient Wireless listen wirelessly for up to 40 hours and recharge the battery in as little as 2 hours

Jbl Clip 5 - Ultra-Portable, Waterproof & Dustproof Bluetooth Speaker, Big Pro Sound with Punchy bass, Integrated Carabiner, Up to 12 Hours of Play, Made in Part with Recycled Materials (Blue)

offers from

Mini Karaoke Microphone Wireless with Light-Up Speaker for Kids Fun

Kids Portable Karaoke Microphone in Rosy Gold – Wireless Mic with Voice Effects, Rechargeable Battery, and Light-Up Speaker

Anker Soundcore Boom 2 Speaker 80W Has a superb bass system and a better volume output. Can withstand power for a long period of time upto one week standby.

All-in-One Blue Kids Karaoke Mic with Built-in Speaker, Echo, and Light-Up Features