Certification:CE Model Number:Hearing Aid Plug Type:US plug State of Assembly:Ready-to-Go Scale:1:5 Features:Flashing Gyro:Hearing Aid Bluetooth Control Channels:2 Channels Max Speed:Hearing Aid Rechargeable Production date:see packaging or label color:White Life time:about 24 hours Charging time:about 2-3 hours Youpin Zdeer Mini Hearing Aid Rechargeable Sound Amplifiers Wireless Ear Aids Portable Ear Hearing Amplifier For The Elderly Product Model: Upgraded Angel Power on and off: 10 seconds after taking it out of the charging box, it will automatically turn on and put it into the box and turn it off automatically Volume level: Short press to cycle 3 levels of volume mode Gear memory function: automatically memorize the last volume gear Charging time: about 2-3 hours Life time: about 24 hours Power supply times of the charging box: about 5 times color: White Registration certificate number: Fujian Machinery Note 20182460106 Users: Compensation for hearing loss caused by air supply Production date: see packaging or label