Some great upgrades for the Positive Grid Spark 40!
power bank used: TalentCell Lithium ion Battery Pack NB7102, Rechargeable 17500mAh 64.75Wh Li-ion Power Bank with DC 24/19/5V and USB-C 5/9/12/15/20V Output for Laptop, Notebook, Smartphone, Camera and More https://a.co/d/7lGVaT8
TalentCell Lithium ion Battery Pack NB7102, Rechargeable 17500mAh 64.75Wh Li-ion Power Bank with DC 24/19/5V and USB-C 5/9/12/15/20V Output for Laptop, Notebook, Smartphone, Camera and More https://a.co/d/7lGVaT8
good wireless - JOYO 2.4GHz Wireless Guitar System 4 Channels Rechargeable Audio Wireless Transmitter Receiver for Guitar Bass Electric Instruments (JW-03) https://a.co/d/2W5UkOc