Before you order, please note it: This is Ecological chain brand product, shipping without packing and no any logo on it. Thanks for your understanding. Description: Baseus laser pen is a helpful tool when have a presentation before audience, which can give you more confidence. Features: USB+Type C plug 100M laser distance Blind operation with three buttons No plugins required Compatible with Win and iOS Specifications: Product name: Baseus wireless PPT controller(red laser) Product weight: 44g Color: Grey Laser technology: RF2.4G Hz Compatible system: Win/iOS Laser distance: 100m(no obstacle) Package size:18.8*6.7*1.5cm / 7.4*2.6*0.5inches Package weight:100g Note: Please do not let eyes contact with the laser directly. The battery of the pen is AAA battery. Package List: 1 * Pen 1 * Manual