Although it is small and lightweight, it is compact enough to fit in the palm of your hand, and weighs just about 7.1 oz (200 g). This portable loudspeaker is extremely attractive. It can output 8W high power, and the amplified cover is 1,400 square meters. The voice is clearly transmitted when the teachers eyes are reached. The sound is loud and clear, so there is no need to worry about the size and sound quality. Sensitivity to pick up sounds, clear enough volume. Hands-Free Use: The device comes with a dedicated belt that can be worn depending on your outfits, so it can be worn on your waist, over your shoulder, or on your back. The microphone part has a flexible arm that can be moved freely and adjusted to your liking. Long Continuous Use & Noise Cancellation: It only takes 3-5 hours to fully charge it, but can be used continuously for up to 20 hours. Battery capacity is 2200mAh.