On-board storage offers a convenient place to keep these accessories

Seat: 15*16" (L*W)

It can quickly convert from a 2-wheel stair climbing hand truck to a stable 4-wheel incline truck to adapt to various environments

Green - fully charged

Lohoms 3000W Portable Bluetooth Speaker with Stand 12" Subwoofer Sound Party PA System Mic LED 16LBS On-board storage offers a convenientLohoms 3000W Portable Bluetooth Speaker with Stand 12" Subwoofer Sound Party PA System Mic LED 16LBS 12" Portable Bluetooth Party Speaker Wireless Sound PA System With Tripod Microphone FM AUX Remote Woofer Heavy Bass Trolley Handle & Wheels Unbelievable 12" Woofer of pure audio power with enhanced bass. Connect and play music or song wirelessly via the built in Bluetooth from your iPhone, iPad, Android smartphone, Android tablet, PC, other MP3