SHARP MD headphone player with BASS adjustment function, AC adapter included - Brand: SHARP - Model: MD headphone player - Features: BASS adjustment function - Accessories: AC adapter - Connection terminals: Headphone jack - Condition: Used Two silver and blue sets. Only one AC adapter is included. Batteries are included, but the batteries are old and cannot be charged for portable use. Please purchase separately. Playback is possible while charging with the AC adapter. How about using it before bed?