Features:1.Ball pen with projector,can be used to project logo 2.Battery used:AG3*4 (power accumulator.last long) 3.Material: ABS 4.Surface metal:chrome 5.The origin of projector:power bright LED (effect more perfect and clear) 6.Most clear within 1-4M;Project 5M when in dark area 7.A key chain and convenient to bring
Projector,Ball pen with projector