Astell & Kern PPE12 Instruction Book page 56

User Guide
FCC Caution
Any changes or modifications in construction of this device which are not expressly a
pproved by the party responsible for compliance could void the user's authority to op
erate the equipment.
Risk of explosion if battery is replaced by an incorrect type. Disp
ose of used batteries according to the instructions.
55
Miscellaneous