Product Name: Mini Extreme Gift Promotion Bluetooth Speaker Model NO.: 268 Compatible Product: Universal Special Function: USB Disk Support Color: Blue SNR: >100dB Sound Channel: 2.0 Interface: RJ-45,RJ-11 Usage: Mobile Phone, Portable Player, Computer, Home Theatre System Speaker Material: Plastic Amplification Type: Active Type: Bluetooth Wireless Speaker Branded: OEM Design: Portable Waterproof: Life Waterproof Trademark: free share Transport Package: Retail Package Specification: 213*87*88.5mm Origin: Shenzhen Product Description Output power: RMS 5W×2 THD=10%Input power Mini USB 5V/lithium battery450mA/3.7V)Loud Speaker: 40mm; 4ΩFrequency Response: 100Hz~18KHzBattery: Built-in 1200mA/3.7V rechargeable batteryWorking Distance 5~15 metres