K10-BT Bicycle Bluetooth 3.0 EDR FM Radio Speaker USB Micro SD TF Card for iPhone SmartphoneDescription: Thanks for you are purchasing the portable Bluetooth bicycle speaker. A water-resistant bicycle speaker could accompany with you anytime and anywhere. The Bluetooth function will bring you wonderful sound quality、 IPX3 water-resistant help you enjoy life within wind and rain freely、 Silicone outer covering make you soft touching feeling. Soul mate、 Always pursuing.Specification:Model: K10-BTBluetooth 3.0 + EDR versionBattery: 600mAhSpeaker: Φ40mm、 4ΩBass booster: Φ40mmOutput Power: RMS 2WX1 (THD=10%、 f=1KHz)SNR: ≥80dBFrequency: 150Hz-20KHzPower: DC+5V、 1ADimension: 50mmx50mmx84mmWeight: 110gPackage Included: 1 x K10-BT Bluetooth 3.0 EDR Speaker1 x USB Cable1 x Audio Cable1 x ManualDetail Pictures: