Product Name: AIDU/ love F5 power supply mode: function: built-in lithium battery card voice call function package type: official standard size: 156x60x26mm playback time: 6 hours is whether to support the APP: connection: 3.5MM audio jack Bluetooth connection weight: 235G color: golden black Bluetooth version: 3 2.1 housing material: metal support format: TF card receiving distance: 10m and the following speaker adjustment mode: the key brand: AIDU/ model: F5 of love