Silvercrest SDABC 1 A2 Operation And Safety Notes page 9

Use the product in dry indoor spaces only .
This symbol refers to the special rules of conduct
associated with children .
Risk of hearing damage
Symbol for a Protection Class II product .
Polarity of barrel connector
UKCA mark indicates conformity with relevant Great
Britain regulations applicable for this product (The UKCA
mark logo is valid in Great Britain only) .
CE mark indicates conformity with relevant EU directives
applicable for this product .
GB/IE/NI 9