... Full frequency response.2. Classical and stable appearance design, with the distinguished rigorous style of trditional Hi-fi speakers.3. Frequency ... 4. 1:1 Real digital wireless transmission.5. The highest sampling ratio in the field: 64K@16bit*2, Hi-fi, HDCD ... 4G wireless speaker. MP3, CD and DVD player. Teach on classroom. Computer and other audio room.Home theatre, portable audio player, Karaoke ...