CenDyne GTide PK-001 Power Bank & 54-Key Mini Wireless Bluetooth 3.0 Keyboard - Type While Charging Your Smartphone! 2-in-1 device: power bank & Bluetooth keyboard for smartphones Compatible with iPhone/iPod touch, smartphones, and other Bluetooth devices Bluetooth v3.0, 54-key QWERTY layout Power & Status LEDs 0.59 x 5.19 x 2.59-inches (H x W x D)