You can read the recommendations in the user guide, the technical guide or the installation guide for SONY NWZ-E453. You'll find
the answers to all your questions on the SONY NWZ-E453 in the user manual (information, specifications, safety advice, size,
accessories, etc.). Detailed instructions for use are in the User's Guide.
User manual SONY NWZ-E453
User guide SONY NWZ-E453
Operating instructions SONY NWZ-E453
Instructions for use SONY NWZ-E453
Instruction manual SONY NWZ-E453
Your user manual
SONY NWZ-E453