Weight 0.1 lbs (45 g)
Dimensions 3.5 x 2 x 0.5 inches (89 x 51 x 13 mm)
Connectivity Bluetooth 4.0 BLE
Compatibility Free app available for Android 4.4+ or Apple iOS 9.0+ iPhone 4s+, iPad Air, iPad Mini, iPad 3 Gen or later, and Android devices with Bluetooth 4.0 BLE
Device Compatibility List HTC One (M7), HTC One (M8), Nexus 5 and later, Nexus 7 Tablet (2013 Version), Nexus 9 Tablet, Motorola Moto X, Samsung Galaxy Note 3 or later, Samsung S4 or later, Sony Ericsson Xperia Z2, Sony Ericsson Xperia ZL, Samsung S5 or later, Samsung Galaxy Note 4 or later, Motorola Moto X, Huawei Honor 8, 5X, Huawei P6 or later, Huawei Mate8 or later
Restrictions Not meant for users with a pacemaker (or other internal medical devices) or who are pregnant
Power Source Internal rechargeable lithium polymer battery
Recharge Time Less than 2 hours to 90%