Joyroom JR-R9S Metal Material Wireless Mini Portable Bluetooths Speaker with TF Function

Spec: Bluetooth version: 4.2 Bluetooth version Bluetooth effective distance: 10 meters Sound maximum power: 5 watts Audio signal to noise ratio: 80DB Speaker unit: Internal magnetic speaker Battery: Built-in 500 polymer, 3.7V/500mAH Music time: 1-3 hours Talk time: about 2 hours (80% volume) Charge input standard: Micro USB DC-5V/450mA±50mA Charging time: 1-2 hours Features: 1.Metal craft, all metal cavity with silicone keys, feel comfortable 2.New experience, two speakers can be TWS interconnect, could experience the music stereo surround.