Lenco BTS-5 - Manual (Page 5)

Technical parameter
Impedance:4Ω Transmission distance:10m
Rated output:3W Speaker size:40mm
Input Voltage:5V,500mA Audio line:3.5mm
S/N:>80dB Frequency:180Hz~20kHz
Sensitivity:800mV Battery: Built-in 600mAh Li-poly
Attentions
1. You can use the hands free function only in Bluetooth
mode.
2.
Avoid magnetic objects while using the device
3.
Bluetooth has two signal transmission namely,
headphone and headset(mono plus microphone). It's
recommended to chose headphone signal.
4.
Its possible the media player of your music device
makes an distinction between analog and digital
mute. It could occur you hear a POP sound when you
press play/pause.
It's recommended to charge the internal battery at
least once a month