This well-engineered Hifi Tube audio system delivers excellent sound quality. The high-quality audio system supports different types of audio connection. The stylish system goes well with modern room decors. Main features and description: 2.0ch Bluetooth/Earphone/MP3/FM micro system. Fully compatible with WMA / MP3 files. Bluetooth streaming function. Bluetooth version: V3.0 + EDR. Bluetooth profile: A2DP, AVRCP. Bluetooth operating range: up to 10 meters. PLL FM radio receiver USB reader in front panel. Prefect handled Aluminum Casing RCA audio output. Solution:6N3 or 5670 Tube and full-function remote control. Wooden speakers ( 4"+1") with high-gloss piano finishes. Output power: 20W x 2, total 40W, RMS 1% THD. Unit size: 150x240x120mm. Speaker size: 150x220x200mm