Product model: HF-Q6 Bluetooth version: V2.0 + EDR Frequency response: 60 hz - 18 KHZ Horn size 30mm 1pcs, 16 core magnetic double Sensitivity: 1% or less Signal to noise ratio: 85 db or higher Rating: 3W Transmission distance: 10 meters Battery capacity: 600mah Rated voltage: DC 5V Bluetooth phone: MIC External LINE sound: there are TF card by USB function FM radio function: Yes Charging time: 2-3 hour Playing time: 3-4 hour Product material: ABS plasticProduct weight:520g