The use of DSP sound field processing makes it support sound change to meet your entertainment needs. The microphone pickup is newly upgraded, and the voice is loud and not distorted The reason why it offers you highly clear sound quality and stereo surround to ensure a more pleasant music experience is that it has built-in magnetic dual speakers with diaphragms It is made of high-quality ABS material, which is lightweight and durable. Gold-plated larger area. Good looking. Special and nice appearance design It is suitable for home, KTV, singing, etc. And it supports dual microphone interconnection, which can connect to the same mobile phone and sing the same song to achieve duet Specifications: Wireless Version: V5.0+EDR Working Distance:10M Output Power: 13W Frequency Range: 70Hz-20KHz Battery capacity:1800mAh Playing time: 4 Hours (60% Volume) Charging time: 3.5 hours Working voltage: DC 5V TF Card: support up to 32GB Input Voltage: DC 5V 1A Product size: 17.6*16.5*15.9cm Net weight: 1017g