Featured here is a hearing aid in a behind the ear style. It offers an adjustable volume and simple buttoned controls. This hearing aid is comfortable to wear and allows the hearing impaired to hear clearly.
 
Specifications:

• Type: behind the ear (BTE).
• Standard frequency: 2500 Hz.
• Max. output sound level gain: 50 ± 5 dB.
• Max. SPL* for input 90dB: 125 ± 10dB.
• Equivalent input noise level: below 29dB.
• Battery type: V40H rechargeable battery.
• Continuous use: 12-16 hours per charge / 300+ recharges
• Total HDV* of reality: 1600Hz: below 4%, 800Hz: below 5%, 500Hz: below 5%.
• Operating temp / humidity: +10°C ~ +40°C, 30~85% RH.
• Storage temp / humidity: -10°C ~ +60°C, 30~85% RH.
• In-ear earpiece.
• On/off button at the back.
• Rotary switch for volume control.
• Comfortable to wear.
• Amplify sounds for the hearing impaired.
• Dimension: carry case (96 x 66 x 22 mm).
• Weight: hearing aid (6.0g), carry case (62.5g).

 
Product includes:

• 2 x hearing aid (rechargeable battery built-in).
• 1 x AA battery.
• 1 x AC adapter.
• 4 x ear cap pair (T, S, M, L).
• 1 x cleaning brush.
• 1 x charging carry case.

 
*SPL = sound pressure level.
*HDV = harmonic distortion value.