TBS2509 Bluetooth3.1+EDR MINI speaker Hands-free portable Speaker with TF card reader for camping Waterproof speaker for outdoor sports Compatible with any Bluetooth media player or phone. Pairs easily to your iPhone and Android devices. Answer calls right on it and hold a conversation through the built in microphone Waterproof for outdoor camping and sports. Hook it up on any of your backpack or bags with the carabiner hanging ring design