add wireless function to your computer/laptop for wireless music streaming, movies, games, online calls & more no audio delay with Qualcomm® AptX™ Low Latency supported wireless speakers or headphones easy to use, plug & play on any computer system such as Windows 7/8/10/XP, macOS etc. user manual: DE - EN - ES - FR - IT Bluetooth version: 4.1 Bluetooth profile: A2DP / AVRCP / HFP / HSP audio codec: aptX™ / aptX-LL / SBC transmission range: up to 20 m weight: 10 g dimensions: 66 x 18 x 15 mm contents Avantree leaf USB wireless transmitter USB extension cable: 1 m (EN)