●Compact design with lanyard, easy to carry
● Bluetooth range: up to 32 feet
●rechargeable battery
●Connect to any audio device via 3.5mm aux in port
●Includes: USB charging cable • User manual
●Output power: 4W
● Speaker unit: 4Ω/4W
● Frequency response: 60Hz-20KHz
● Input sensitivity：500mV
●Separation：≥90dB
●SNR ≥80dB
●Battery: 300MAh Li-ion