Product Name: Sport Waterproof Mini Speaker FM Radio TF Card Subwoofer Wireless Bluetooth Speaker Model NO.: Y3 Compatible Product: Universal Special Function: Memory Card Support Color: Blue Red Green Black SNR: 81-90dB Sound Channel: 2.0 Interface: USB Usage: Mobile Phone, Portable Player, Computer, Home Theatre System, Radio, TV, Karaoke Speaker Material: Plastic Amplification Type: Active Type: Bluetooth Wireless Speaker Trademark: OEM Transport Package: Retail Package Specification: 87*80*47mm Origin: China Product Description Specification:Support A2DP, AVRCP, headset, handsfree profileBluetooth Version: V3.0Working Range: Up to 5mWorking Time: 1.5 hoursCharging Time: 2 hoursBattery Capacity: 520mAhFrequency Response: 280Hz-16KHzSignal-to-noise: ≥95GBDistortion: ≤0.5%