TERSELY Portable Bluetooth V5.0 Wireless Music Speaker $31.99 + Delivery ($0 with Prime/ $39 Spend) @ Statco via Amazon AU

Specification
Bluetooth Version: V5.0
Output Power: 2x 10W
Input: DC 5V/ 1A
Battery: 3.7 V/ 1800 mAh
Battery Charge Time: 4 hours
Playtime: Up to 12 hours (varies by volume level and audio content)
Dimension: 5.903.343.34 in / 158.58.5 cm
Weight: 1.1 lb / 500g

Features:
[Bluetooth 5.0 and hands free phone function] — Wireless Bluetooth speakers provide 360 ° surround sound for rich sound. built-in microphone, it is more convenient to make a call, compatible for iPhne, iPad, MP3, Android Smartphone, Amazon Alexa etc.
[TWS Technology (True Wireless Stereo)] — allows wireless connection to 2 speaker at a time with a range of more than 20 m. One left channel and the other right channel. Press the TWS button to let two speakers connected with each other firstly, and then make your device connected with speaker bluetooth.Cubot bluetooth speakers are the perfect partner to watch movies and listen to songs.
[AUX IN Audio Input] — Play audio for smartphones, tablets, and other devices that support the Bluetooth wireless audio profile or have a 3.5mm audio output; Up to 12 hours of battery life (Actual battery life varies with device usage, settings, and environmental conditions).
Easy to carry, support Android charging, suitable for any adventure or outdoor
TERSELY will offer a limited warranty for free replacements or refund against defects in materials and workmanship from date of purchase for 1 Year.