Features: 1. Super compatible, Macaron small speakers are compatible with most wireless devices, mobile phones and tablets. 2. Distance transmission, you are not afraid of being unable to connect, you can listen to wireless music within 10 meters. Built-in 300M or AH capacity battery, fully state can be played continuously for 2 to 3 hours. 3. Listen to wireless, unlimited extension. HiFi surround sound effects allow you to immerse yourself in the world of music. Description: After buying this product, you will have a quality life and listen to good voices. Specifications: Product name: A11 Speaker size: 52mm or 36 external magnet version: V4.0 Output power: 5w Battery model: 502030 Battery capacity: 300M or AH Support function: TF or USB or FM or AUX Material: plastic colour: Green Package Contents: 1 x wireless speaker 1 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.