The new 2pcs2pc Ultra Sound Amplifier headphones provide a reliable and easy-to-use solution to strengthen everyday sounds. Its compact design, placed behind the ear, enables discreet use and offers up to 30 dB confirmation, which will help you to hear the sounds of speech and the environment more clearly. The frequency range between 100 Hz and 4000 Hz is ideal for strengthening voice and the low flow rate of less than 3 mA ensures energy efficient operation. The device works with a 1.2 V battery, has a distortion of less than 6% and a signal-noise ratio less than 28 dB, providing a balanced sound for everyday use. Several silicone heads allow a comfortable and individual fit, and the accompanying cleaning brush helps to keep the device clean and extend its life.The package contains: 1 Ultra Sound hearing aid, 1 charger at the docking station, 1 cleaning brush, 6 silicone head. Technical specifications: Battery: 1.2 V Operating current: less than 3 mA Frequency: 100-4000 Hz Confirmation: 30 dB Signal-noise ratio: < 28 dB Fragrance: < 6%See images.Quick delivery with Matkahuolto.