Sony REON POCKET 3: Great for both summer and winter! Warms your neck and can also improve stiff shoulders! Hot & Cool Works as a neck cooler in summer and a neck warmer in winter. You can adjust the temperature from the smartphone app. Automatically turns on when worn and off when removed. System updates are performed as needed. 1. Driving time up to about 2 times longer, heat absorption up to about 1.5 times greater With the newly developed thermomodule and heat dissipation mechanism, it is compact and lightweight, yet capable of highly efficient cooling. This allows for a driving time of up to about 2 times longer than the previous model※2. Furthermore, it is equipped with Level 4+ (plus), which achieves a heat absorption performance of up to about 1.5 times greater than the previous model※3 when powered by USB. Also, it achieves rapid charging of 90% in as little as 60 minutes, which is about 1.7 times faster than the previous model※4. ※4: This is an estimate when charging from 0% battery remaining to 90%. The actual charging speed may vary depending on the device and charging conditions. 2. Newly equipped with two smart functions utilizing sensing technology "SMART COOL MODE" function that automatically adjusts the cooling temperature according to behavior and environment The sensors built into the main unit sense the condition of the cooling/heating part and the user's actions, and automatically adjust the cooling level in response to changes in ambient temperature. You can maintain a temperature that suits your personal preference. "AUTO START/STOP" function Senses the condition of the cooling/heating part and the user's wearing/removing actions, and automatically starts and stops cooling/heating. You can easily operate "REON POCKET" without starting the dedicated app. 3. Evolved dedicated neckband "NECKBAND 2" The angle of the band that goes around the neck can be adjusted to suit the individual, achieving a more stable fit. In addition, the design takes into consideration the intake and exhaust mechanisms of the main unit, and even when worn with clothing with a high collar design, it maintains air circulation and does not impair cooling performance. ※1: RNP-2 ※2: When comparing the driving time when using Level 4. Varies depending on usage conditions and environment. ※3: When comparing the average heat absorption amount for 60 minutes from the start of operation at the maximum cooling level. Varies depending on usage conditions and environment.