- Smart Warmer-Charger in Silver- Slim and lightweight- Switch it on slip it into the knit sleeve and place it in your pocket for comforting warmth in 1 minute - Use included USB to micro USB cable to provide backup charging power to your cellphone- Features built-in flashlight- Ideal for winter commuters and recreation activities- Warms up to 104 degrees fahrenheit- 360 degree rotary switch- Can be recharged over 500 times- Aluminum shell for thermal conductivity- Charge unit with included USB cable in 3 5-5 hours- Single Use Duration up to 5 hours with warming up to 50 with flashlight-use only
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