EC TECHNOLOGY Portable Mini Speaker, Outdoor Leiser

Feature: deep bass HD 3W + 3W watt loud speakers with 40mm Premium drivers for both active outdoor and indoor occasions 2*2*2.8" 4.3oz super Mini size, convenient for exercise, party, travel use Bluetooth V4.1+Edr wireless connectivity with seamless streaming 2 x 40mm speaker driver output with Deep bass and crystal clear sound lovely and retro beer barrel design for home and office decoration specification: battery: built-in rechargeable 500mAh lithium polymer battery charging time: ≤2.5hours speaker Driver: stereo, 40mm, 4ohm. Frequency range: 2.4-2.48GHz Sensitivity: 4dBm receiving range: ≥-82dBm Transmission rate: up to 3Mbps charging current: 450mA charging voltage: 4.8-5.5V connection range: 33 feet distortion: ≤10% Signal-to-Noise ratio: ≥65dB unit weight: 4.3oz what you get: Stoga beer barrel Mini Bluetoth4.1 stereo speaker manual USB charging cable