The B503 is part of TIC's new Bluetooth 5.0 family of multi-speaker audio solution. Compared to Bluetooth 4, our new Bluetooth 5 chipset offers significantly range improvement, up to 4x the distance (vs. 4.0) and increased audio quality due to speed & bandwidth enhancement. Best of all, you can easily connect up to 100 compatible TIC Bluetooth 5 devices to create a massive multi-speaker sound system.Single active omnidirectional in-ground speakerBuilt-in 2*50W power amplifier, Extra tail can connect with another any 8ohm speaker to get stereo,such as B03,B06,GS3,GS5,TFS5,TFS6,TFS10,TFS25 etc.Powerful coaxial 2-way speaker design (8" woofer and 2" tweeter)Bluetooth 5.0Wireless distance up to 300 feet*Can connect and play in sync with up to 100+ compatible TIC Bluetooth 5 devices 360° omnidirectional soundIn-ground or surface-mount installationBest-in-class weather and impact-resistant exterior design30-ft waterproof, bury-ready power supplyBluetooth wireless input only (no wired input)Included accessories: remote control and power supplyDimension: 15" w x 15" l x 19.25" hBluetooth family: B503 B526 B515 BPS560 ,BPS565,RB506,RB505, New designs will come in soon. All these items can be paired together upto 100 pieces. On Jun-29-20 at 15:25:06 PDT, seller added the following information: