The SONY REON POCKET 5 is a white neck cooler perfect for heat対策, and comes with a dedicated case and charging cable. - Brand: SONY - Model Name: REON POCKET 5 - Accessories: Instruction manual, charging cable (alternative), dedicated case - Type: Neck cooler - Color: White Thank you for viewing. I used it about 5 times last season (summer). It is fully functional. Of course, the warming function has also been confirmed. The smartphone app also worked without any problems. Thank you for your consideration.