Audio Components Different Materials Give Different Sound Effect Feel different rhythm on different materials Wood: Bass is good, rich and sumptuous mid-sound Metal: Strong bass sound Paperboard: The clarity of the sound reduced and it feels like vinyldisc Glass: Clean and transparend sound Hollow Wall: Good spacious sound performance 360 stereo release vibrate sound quality Feel the real super bass High frequency, medium and low frequency equalization, Low frequency is the most shocking Handsfree Function With Build-in High Fidelity Mic Chat Without Phone, And More Compatible With Chat Video Software Touch Key / Wireless Call / Enjoy Life / Talk Near The Mic Will Be More Clearer Build-in Mic Handfree / Metal Body, CE Certification With this Adin Speaker, you can avoid evil neighbors and prevent them from noise interference! Let you have a comfortable and quiet home environment! Felling Vibrating Subwoofer Sound through the medium, High quality bass, sound Bass frequency improve 50%, High frequency improve 35% Bluetooth CSR 4.0+EDR Connect Fester And More Stable Import 4.0 CSR to Make Connect Fester And More Stable High Compatibility Chip And Column Vibration, Make 360 Stereo Surround, Bass Thick, Fine Midrange, Treble Sorghum Compatible with most electronic products in the market: such as mobile phones, tablets, game consoles, MP3, etc Wireless Bluetooth connection, free from the shackles of wired Distance within 10m, music transmission AUX playback, universal 3.5mm interface Built-in lithium battery, long life, music playback: about 4 hours