Williams Sounds Pocketalker Ultra w/ Dual Mini Earphone The Williams Sound Pocket Talker Ultra System amplifies sounds closest to the listener while reducing background noise and has a lightweight ergonomic design for portability and ease of use It features a fingertip adjustable volume control that allows you to quickly adjust to your listening environment The PKTD1-E14 includes dual mini earphone EAR014 it can get up to 40dB SPL high volume output and clarity Its easily adjustable volume and tone control allows you to customize your listening environment The unit uses two standard AAA batteries for hours of continuous enjoyment however this bundle includes 18 additional AAA-Batteries