(1) bluetooth v2.1+edr
(2) support hfp, a2dp, avrcp
(3) support 5 hour playback time at 70% volume
(4) wireless transmission range up to 10m
(5) support line in and tf card
Power supplier:, dc5v
Output power:, 3w(1khz, thd1%)
Frequency:, 280hz-- 16khz
Signal&noise ratio:, ¡y95db
Impedance:, 4 ohm(|)
Li-ion output:, 3.7v~4.2v+0.05v
Li-ion input:, 5v
Lithium battery:, 450mah
Speaker unit:, dia 45
Case material:, abs
Dimensions:, 75*75*42.6mm
Weight:, 149g
Color:, oem
Neutral packing or customzed packing