ITEM NAME:wireless bluetooth speaker metal mini portable subwoof sound with Mic TF ca D3T7 wireless bluetooth speaker metal mini portable subwoof sound with Mic TF ca D3T7 Type: Bluetooth Speaker Connection method: Bluetooth connection Interface type: USB Battery capacity: 400 mAh Frequency response range: 100HZ-20KHZ Signal to noise ratio: ≠¥75dB Power supply mode: built-in lithium battery Channel: 2.1 Play time: 8 hours Extended storage: 32GB Bluetooth protocol: 4.1 Effective distance: 10 meters Function: voice prompt, card, radio, call function Mode of operation: button Applicable people: General Display: None Play format: MP3 Support format: TF card Material: aluminum alloy Product weight: 0.16 (KG) Color: red Packing Listï ¼Å¡1* Bluetooth speaker, 1*audio cable,1* USB charging cable.Find many great new & used options and get the best deals for wireless bluetooth speaker metal mini portable subwoof sound with Mic TF ca D3T7 at the best online prices at shop2india!