Product Specifications 
【Description】Dr. Warm Remote Control Insoles
【Function】Keep warm 3-8 hours; Rechargeable
【Model】R4
【Material】EVA bottom with cotton
【Battery Voltage】3.7V
【Battery Capacity】1500mAh
【Charging Voltage Peak】4.2+/-0.05V
【Minimum Discharging Voltage】2.7V
【Charging Mode】CC/CV
【Battery's Maximum Charging Current】1500mA (0°C~45°C)
【Battery's Maximum Discharging Current】1500mA (-20°C~60°C)
【Battery Internal Resistance】< 10Ω
【Size】4 sizes: S/M/L/XL; 36-38/39-41/42-43/44-46
【Logo】Dr. Warm or custom logo
【Certificate】CE, RoHS
Product Feature ◪1. Wireless smart remote control;
◪2. Three temperature settings: High/Medium/Low setting;
◪3. Heat up to temperature: 45°C/50°C/55°C;
◪4. Ultrathin design suit to different footwear;
◪5. Ergonomic design: Give feet warm and comfortable feeling;
◪6. Stable heating and easy to use;
◪7. Patented and passed CE and RoHS certifications;
Product Instructions Heating up to 55℃/140℉
Heat supply lasts for 3-7hours
Improves blood circulation
Ultra slim 0.5cm-0.7cm, fit to most shoes
Made of EVA material, environmentally friendly and comfortable
With Prined pattern
Heel cushion design;
Shock absorption when walking and runing;
Arch support design, suit your foot shape;
Product Applications 
Packing List 
1 Pair of Dr. Warm Insoles
1 Dual Micro-USB Charger
1 Wireless Remote Controller
1 Manual
1 Packing Box
| SIZE | EUR | US MAN | US WOMAN | LENGTH mm |
| S | 35 | 4 | 5.5 | 231.1 |
| 35 | 5 | 6.5 | 237.1 | |
| 37 | 5.5 | 7 | 244.4 | |
| M | 38 | 6.5 | 8 | 251.1 |
| 39 | 7 | 8.5 | 257.7 | |
| 40 | 8 | 9 | 264.4 | |
| L | 41 | 8.5 | 10 | 271.1 |
| 42 | 9.5 | 11 | 277.8 | |
| 43 | 10 | 284.4 | ||
| XL | 44 | 10.5 | 291.5 | |
| 45 | 11 | 298.2 | ||
| 46 | 12 | 304.9 |
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