GEMM is a pocket-sized, stylish, and versatile wearable cooling and warming device. GEMM uses patent-pending thermoelectric technology to bring you instant cooling or heating at the touch of a button. Includes 1- One neck cooling module, 2- One control module with buttons, LEDs, and rechargeable lithium-ion battery, 3- A pair of magnetic cables 4- One USB-A to USB-C charging cable 5- One instruction book. Performance: Cools down to 50*F / 10*C and warms up to 108*F / 42*C Specifications: Contains an in-built 1,700mAh 3.7V rechargeable battery lasting up to 7.5 hours during heating or cooling on the lowest setting, or 3.5 hours on the highest setting. Noise level < 30dB. Battery status LED indicator, and power level LED indicator. Dimensions of the neck module: 3.74" long (9.5cm), 1.57" height (4cm), 1.1" thickness (2.8cm). Dimensions of the control module: 1.93" width (4.9cm), 2.36" height (6cm), 0.78" thickness (2cm)
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