[NO PROGRAMMING REQUIRED ONE BUTTON OPERATION]The hearing aids adopt more advanced technology and chips, it only takes 3 seconds, you can turn the machine on and off, and you can see the volume adjustment button, no need to adjust it with tools. Thus, the difficulty of operation is greatly reduced, even the elderly can use it fluently. [COMFORTABLE SOUND QUALITY ,INTELLIGENT NOISE REDUCTION]The hearing aids use the latest digital chips and state-of-the-art technology, with more intelligent sound [ BATTERY LIFE,WIRELESS CHARGING]This pair of high quality hearing aids is 100% rechargeable, providing 25 hours of battery life from a 3 hour charge. And a smart charging box with power indicator is included. The battery box can store 70 hours of standby power, which is enough to charge the hearing aid 2-3 times, no more fumbling with small button batteries. [ AND COMPACT, COMFORTABLE TO WEAR]This hearing aid is designed to be so light and comfortable that you may even forget you're wearing it. The ear tips ar [6 LEVELS OF VOLUME AND 3 MODES, EASY TO ADJUST] Our hearing aids have 6 levels of volume adjustment to help you better adapt to the environment. Normal mode: Suitable for quiet environments. Moderate noise reduction mode: Perfect for parties, shopping or other noisy situations. Noise cancelling mode: For outdoor sports or those who want to reduce sensitivity to constant noise. To switch modes, and hold the switch button on the hearing instrument for 1-2 seconds. [VARIOUS ACCESSORIES FOR OUR HEARING AIDS]A pair of hearing aids, charging case and user manual, and some small accessories , including 5 pairs of high quality silicone ear tips in different sizes, headphone cleaning brush and charging cable. Please choose the right dome according to the size of your ear canal. Colour:Photo Color Material:ABS Size: Headphone size: about 3.48x1.7x0.85cm, charging stand size: about 5.6x5x3cm Package Contents: 1 pair x hearing aids 1 x charging case 1 x charging cable 5 pairs x silicone ear tips 1 x cleaning brush 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.