TG187 Wireless Speaker Features: Bluetooth version: V5.0 Wireless transmission range: About 10M Audio noise ratio: ≥90db attery capacity: 4400mAh Built-in voltage: 3.7V Power: 4Ω/15W*2 Frequency response: 80HZ-20KHZ Product size: 292*132*139mm Charging voltage: 5V/1A Charge time: 3-4 hours Unit weight: about 1480g Support Hands-free function support TF card and U disk
