Wireless transmission rang: up to 10meter Frequency response: 45Hz-18KHz Signal to noise ratio:>=85dB FM scan rang:87.5-108.0MHz USB charging:DC5V Speaker drive size: 4"x2 Battery capacity:1500mAh Play time: 3-5 hours Charging Cable: Type-C Output power: 10W Peak Music Power Output: 2000W Size:160*155*375MM TWS Function: 1.Open two Speakers at the same time 2.And then long press the MODE button on this Speaker 3.Until we get another Speaker paired up 4.Connect your phone to Speaker Bluetooth Package Included: 1 * Bluetooth Speaker 1 * Charging Cable 1 * Microphone (Optional)