One of the most charismatic and fascinating figures of the 20th century, Winston Churchill was a prolific writer, masterful orator, and consummate wit. In The Wit…
An Introduction to Community Health, Seventh Edition, has been updated to reflect the latest trends and statistics in community health. With an emphasis on developing the…
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2.4GHz wireless digital audio
Reliable 2.4GHz wireless connection provides up to 10-meter working range . You are free to enjoy high-quality,stereo audio.
COM- Ti membrane vibrating technology
The speaker adopts COM- Ti membrane vibrating techno…