Fitted with a replaceable coin cell battery that will last up to 6 months, you'll never have to take the Misfit Shine 2 off to charge. Boasting a slim, smart and strong yet lightweight design, the rose gold tone Shine 2 tracks activity and sleep, is Bluetooth 4.1 enabled for fast data transfer and is water resistant to 50 metres.Bracelets & Bangles1 year guaranteeClean with soft dry cloth Shop At House Of Fraser