... 2.5 hours. Multi-function for outdoor, travel, home entertainment with your lovely family, children and friends. Features:* Outdoor Portable ... Supports KARAOKE, 2x MIC support.* Powerfull 3"x2 Speakers, nice sound effect.* With DVD player, USB reader, SD/MMC/MS card reader ... being damaged in case outdoor power polarity (+/-) is reversed.* With remote control. Agreement:Before you place the order to us ...