Lithium Battery Powered & Rechargeable Heated Insoles Keep Feet Warm Pad, Keep Warm 8-9 hours, Size: 39-40 yard, Size: 39-40yard Option:Size: 39-40yard Speaker: 8pcs

Speaker: 8pcs

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and 10 brightness levels

GPU: G31™ MP2 GPU processor

Lithium Battery Powered & Rechargeable Heated Insoles Keep Feet Warm Pad, Keep Warm 8-9 hours, Size: 39-40 yard, Size: 39-40yard Option:Size: 39-40yard Speaker: 8pcs1. This is a portable rechargeable heated insoels. Built in lithium battery module. 2. High capacity batteries offer 8 9 continuous hours of runtime with fully rechargeable Batteries. Warming time is varies in different environment. 3. The heated insoles is made of elastic EVA foam, it soft and comfortable. 4. Made of carbon fiber heating material, high conversion rate, saving power. 5. Adopt waterproof heating material, the insole is washable, you