What is TWS technology? True Wireless Stereo refers to a technology which allows you to pair two audio devices wirelessly, meaning that you can transmit the L channel (left) and the channel R (right) separately.
IPX6 Splash proof, Built-in microphone, handsfree speakerphone, 3 hrs play time, Stereo sound, 10W output power, Battery Li-ion: 1800mAh, Input: 5V-0.5A. Wireless standard: 4.2+ESR, Transmission distance: 10M
Dimensions: 9*4*3 inches.