5.25 " amplifier + 3 " speakers x5- output power: 30W+10w5- frequency response: 40Hz-20khz, - separation:? 75Db- features: USB/SD/FM/Bluetooth/remote-the speakers in this system are wired the Bluetooth is to allow the system to wireless connect with any other Bluetooth enabled device. 11 x 23.5 x 21 inches. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses.Your feedback very important to us, after you get your package and you are. If you have any problem with your order / any questions please before leave any type of feedback. Thank you for shopping at our store.