Product Description: Bottom layer: Polyurethane (PU) Middle: Highly breathable Osley Upper layer: super fine worsted velvet Heating
Material: far infrared crystal nano carbon fiber
Colour: Black+ Green Type: Wired Thermostat (You can choose)
Size: S/LL: 41-46 (EU) / 8-12 (US)S: 36-40 (EU) / 6-9.5 (US) Heating temperature: 41-50 C Charging time: about 2-3 hours Application: any shoes Battery parameter Insole battery voltage: 3.7 V Lithium battery capacity: 1800m Ah (wired charging version) Operating voltage range: 3.0v-4.2v Charge cut-off voltage: 4.2v Discharge cut-off voltage: 3.0v Charger parameters Input: AC100v-230V 50-60 Hz Output: DC 15v 1.5A
Features:● Constant temperature● Can be cut, suitable for your shoes● Large capacity battery, long-lasting battery life● Safety voltage, no harm to the human body Package include:● 1 x Pair of insoles● 1 x Charger● 1 x Manual