GGMM E2 is a smart wireless speaker with Alexa Voice Service. Users can simply talk to products to play music, answer questions, get news and local information, control smart home products and more. Portable with 2 driver speakers, it provides you stereo immersive sound, obviously with better performance than any other similar size speakers. 2 connection modes: Bluetooth / Wi-Fi. Exclusive GGMM APP, simple easy to connect and set; also provides plenty of cloud music, streaming music without smart phone control once connected in router mode, and you can preset your favorite music styles up to 6 channels. Support multi-room play and individual left/right channel control. Compatible with iOS/Android, support AirPlay / DLNA in smart phones, tablets. Hands-free phone calling over Bluetooth. Manual control to arise Alexa service by pressing microphone button. Built-in rechargeable lithium battery, charging for 3 hours lasts up to 14 hours. Available in a selection of colors to fit your style. Palm large mini size, allow being carried away or put in bags or place in any conner.