Dual In-the-Ear Rechargeable Hearing Amplifier, HA69

6 VOLUME SETTINGS - allows for optimized sound quality in different listening environments NOISE CANCELING - helps restore sound with clarity RECHARGEABLE - includes a portable charging case that can hold up to 12 hours of use after a full charge  POWERFUL AMPLIFICATIONS - Amplifies the volume of inside and outdoorsounds & the 6-volume level allows you to hear sounds both louder & clearly WHAT'S INCLUDED -  2 x Dual ITE Hearing Amplifiers, 6 x Exchangeable Ear Tips1 x Cleaning Brush, 1 x Cleaning Stick, 1 x Charging Case, 1 x USB Charging Cable, 1 x Instruction Manual Accessories available for individual purchase  Product Dimensions : 0.09 x 0.7 x 0.9 inches; 0.4 pounds Technical details:• Charging time: 2 hours• Ergonomic design - shaped to fit perfectly in your ear• Frequency range: 300 ~ 3400 Hz• Max volume: ≤ 120 dB• Max Amplification: ≤ 42 dB• Low-noise rendering Download this product's instruction manual here