Coast ZX20B Dual Purpose Rechargeable Booster Pack, Power Bank and 200 Lumen LED Flashlight, Safety Signal for RL20R. RL20RB, RL22R, RL27R

Rear-Facing Safety Light: Make yourself visible to those behind you with an independently controlled safety lightshining solid red or flashing redbuilt into the battery.
C. O. B.
Mini Flashlight: Shine bright by handusing the integrated C. O. B. to operate the battery as a mini flashlight.
Pocket Clip: Carry the booster battery using the integrated pocket clip to keep extra power ready at all times.
Built-in USB-C Port: Recharge without any fuss by plugging power into the USB-C port integrated with the ZITHION-X battery.
USB-C Charge Out: Use your booster battery as a power bank for other devices. The USB-C charging port doubles as a power-out port for recharging on the go.