Features: Exquisite round design with perfect process, mini body, more smaller and lighter. Multi-point design, one transmitter could connect with two Bluetooth devices at the same time, eg. one BT speaker and BT headsets. High quality stereo transmission makes sure you can enjoy the auditory feast. It will searching new device after power on, and the blue lights flashing alternately. One of the blue light on after connect one device successfully. It will connect one Bluetooth device automatically, push the power on button if the 2nd speaker need to search. Both of the blue lights on after two speakers connect successfully. The red lights on when charging and off with full charge. Power off: long press 2 seconds. Easy operation, connect the product with audio players by a audio cable, without set up after the device turn on. Specifications: Bluetooth version: 4.0 Battery duration: Approx 6 hours Charging period: Approx 1.5 hours Product size: 45mm*11mm Package included: 1 x Multi-point Bluetooth Transmitter 1 x 3.5mm Audio Cable