Item Type: Two-Ear Hearing Aid Material: PC Color: Black Hearing Aid Battery: Polymer Lithium Ion Battery (Built-in) Capacity: 2 x 35mAh Charging Compartment Battery: Polymer Lithium Ion Battery (Built-in) Capacity: 300mAh Bluetooth Version: BT 5.2 OSPL90 Maximum Output: 115dB +3dB OSPL90 HFA Average: 102dB 4dB HFA Average FOG50: 33dB5dB Frequency Range (Not Less Than): 260Hz - 5000Hz Charging Time: 2 Hours Use Time: 5 Hours NOISE REDUCTION: 16-channel digital noise-canceling hearing aids for people with mild to moderate hearing loss. Intelligent filters that reduce distracting noise and enhance voices. Supports Bluetooth 5.2 to provide lossless quality sound. You can connect your mobile phone to listen to music, watch TV and play games without delay in sound transmission. COMFORTABLE: Mini-design two-ear hearing aids make them nearly invisible and comfortable to wear. In addition, the earplugs have strong suction to fit most ear canals, preventing them from falling out. Choose an earplug that fits snugly in your ear and avoid loose fits, which can cause feedback or whistling. ADJUSTABLE VOLUME: The hearing amplifier has five volume levels that can be adjusted with the button on the charging case and the touch surface on the head of the earbuds. Normal mode, conversation mode, outdoor mode and TV mode, the 4 different modes have more advantages in noise reduction. This is a rechargeable hearing aid for seniors and adults with noise reduction. COMPLETE ACCESSORIES: Rechargeable hearing amplifier for seniors comes with 2 x hearing aids, 1 x portable charging case, 2 x large, medium and small earplugs, 1 x packaging box and 2 x instruction manuals. The manual is easy to understand, making operation simple. EXCELLENT GIFT: Bluetooth hearing aids can help people reconnect with the people and things they love and get back to everyday life. It is the perfect gift for the elderly and your loved ones, allowing them to hear words of love and laughter from everyone. 2 x Two-Ear Hearing Aid 1 x Charging Case 1 x USB Cable 2 x Instruction Manual 6 x Earplugs (3 Pairs) The hearing amplifier function cannot be used at the same time as the Bluetooth function is used.