Feature 1 SUPERIOR SOUND QUALITY: Wireless bluetooth speaker with 2x20W dual speaker independent diaphragm, lossless HIFI, clear and full sound, like being at a concert. 2 MULTIFUNCTIONAL: Outdoor wireless speaker has a built in 6600mAh battery for long battery life. Built in high definition call microphone for one touch calls. 3 WATERPROOF DESIGN: Portable wireless speaker with IPX7 protection against rain, dust, snow and spills. Silicone material for a comfortable grip. 4 MULTIPLE CONNECTION: Portable wireless speaker with memory card connection, sound cable connection, Bluetooth connection, Bluetooth 4.2 multi device compatibility, freeing up your hands from the restraints. 5 EASY TO PAIR: Two "X3 PRO" units are in close proximity to each other and are in Bluetooth standby mode (ensure that Bluetooth is disconnected from other devices). 6 CONVENIENT TO CARRY: Outdoor wireless speaker comes with a small lanyard and is lightweight for maximum portability. Put it in your backpack and take it with you.Item Type: Wireless Bluetooth SpeakerMaterial: Iron Mesh, SiliconeModel: X3 ProOutput Power: 2 x 20WInput Power: Type C 5V 3ABluetooth Version: 4.2Support Memory Card: 64G (Maximum)Supported File Formats: MP3, WAV, FLACCharging Time: 3 HoursWaterproof Rating: IPX7Built in Li ion Battery: 6600mAhBattery Type: 18650 Package List1 x Bluetooth Speaker1 x Input Cable1 x USB Charging Cable1 x Small Lanyard1 x Chinese and English Manual