Free Shipping! Spiffy by Spekular Spiffy Gear KYU-6 Bi-Color LED Light Bracelet Tunable Temperature between 2700-6500K, Micro-USB Charge Port, 8-Hour Runtime, 5 x FX Modes, Slap-On Magnetic Mount, Runtime: Min. Power: 8 Hrs. / Max: 1 Hr.