Features: brand new and high quality Rechargable feature,our hearing amplifier runs with high quality lithium battery, which saves your trouble to buy button batteries frequently. it can be used for approx 48 hours after 2-4 hours charging . Good gift for elder,it is easy to use, if your elder are having soecific instances of difficulty of hearing, this is a practical, efficient, cost effective hearing device. High quality material , it is made of plastic and metal material , it is not easy broken ,durable for a long for time . Bluetooth-compatible connection,the hearing aids support bluetooth-compatible connect, you can hold the “for m” button of the hearing aid for about 3 seconds and then connect with your phone or tv,then you can enjoy music or answer phone calls. Lightweight and comfortable,equipped with the latest upgraded chip, ultra-low itself background noise, and ultralight weight body you don'for t even feel wearing it. Specifications: Material:Plastic+Metal Size:As Picture Showes Color:Blue,Skin Plug Tape:A,B Package Includes: 1 Piece Hearing Aid note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the pic may not reflect the actual color of the item.