... 4.with built-in battery Stereo audio bluetooth receiver BA302Quick Details BrandGenericItemBluetooth Audio DongleModelBA302VersionBluetooth 2.0 ... phone, mp4, mp3, HIFI iPod, TV, Bluetooth Stereo HeadsetSound Channel: StereoBattery: Built-in Rechargeable Lithium ... Weight: 15 gramsColor: Black (or OEM) AccessoriesOne Bluetooth Audio DongleOne USB charger cablePackaging & DeliveryPackaging: BlisterPackage ...