Powerful welding sound quality, exceptional deep bass Automatic Bluetooth-compatible search, receiving distance of 10M and below Supports MP3, WMA music file formats Supports TF card, Bluetooth-compatible with calling function, and file playback Supports external audio input functions for MP3/MP4/computers, etc. (AUX) Stereophonic sound, booming bass Equipped with a mobile power function Bluetooth-compatible 5.0 speaker for saturated sound quality Configured with high-end mid-low frequency settings for a true shocking wave New environmentally friendly waterproof cloth mesh craftsmanship, IPX6 waterproof rating Innovative design with unique LOGO craftsmanship, original full-transparent lighting visual effect with vibration mode Comes with a shoulder strap for easy portability, IPX6 waterproof Supports 1+1 pairing, with matching wireless microphone Supports EQ modes with three sound effects to choose from, with LED smart color Specifications: Output low-frequency horn: 4 35W * 1 High-frequency horn: 4 10W * 2 Input sensitivity: 400mV Separation: 90dB Signal-to-noise ratio: 80dB Operating voltage: DC 7.4V Battery: 18650 8800mAh Battery working time: 6-8H Total power: 55W Size of low-frequency horn: 90mm Size of high-frequency horn: 66mm * 2 Diaphragm size: 88mm * 2 Bluetooth-compatible version: 5.0 Bluetooth-compatible solution: Jieli Main control: AC6921A Machine size: 310 * 12.1 * 12mm Weight: 2065G Package included: 1 x Bluetooth-compatible Speaker (with Shoulder Strap) 1 x Microphone 1 x Charging Cable 1 x English and Chinese User Manual