Product color: Black / Red / (other colors can be customized) Luminous color: White (other colors can be customized) Cap Size: 58-60cm (adjustable) Resolution: 25*5 points Charging method: USB charging Input voltage / current: 3.7v / 450mAh Edit mode: Key selection Input content: Letters, Arabic numberals
Features: 1. Button selection 2. Built-in animation 3. Letter / number input 4. Fixed pattern