Joyo MA-10B Portable Bass Amp – Thomann United States
Amazon.com: Pyle Portable Electric Guitar Amp - Battery or Wall Power Mini 10 Watt Mini Practice Instrument Amplifier w/ 5" High Definition Speaker, Headphone Out, Volume, Bass, Treble, Distortion, Gain Controls :
Blackstar Super FLY - 12W Battery-Powered Portable Amplifier - The Sound Parcel