LunaR can be charged two ways: First, the “traditional” manner with the included USB charger or the easiest way...Go outside and get some sun! That’s right, charging LunaR is as simple as taking a walk or a bike ride. LunaR’s invisible solar panel absorbs any sunshine its exposed to and stores it in Lunar’s tiny, high capacity Li-Ion battery. That means you never have to worry about losing the charging cord, all you have to do is point Lunar toward the sun.
Hot Tip: If for any reason you’re not planning to wear LunaR for a period of time, just set LunaR in a sunny spot to ensure you’ll have months and months of battery life.