Colorful 2.4g wireless earphones features:
1.Chatting online;
2.Transmission range:larger than 10m;
3.Sound:full acoustic fidelity and strong bass voice;
4.Invisible noise reduction mic inside guarantees acoustic fidelity;
5.Battery:180 hours long standby/lithium battery inside lasts for 8 hours;
6.Intelligence code system:share music online with friedns with one emitter.
Detailed specifications:
1.Frequency range(ghz): 2.404~2.476.
2.Avaiable range(m): 10..
3.Baud rate(bps): typ:4m..
4.Successive working time: about 8hours.
5.Battery: chargeable lithium-ion polymer battery (3.7v/320ma/h)...
Two part:...Speaker parameter:
1.Speaker diameter: 40mm..
2.Impedance: 32
3.S.P.L: 118db s.P.L.At 1khz..
4.Rated power:20mw......
5.Aggregate capability:40mw..
6.Frequency response:20hz-20, 000hz
Microphone parameter.
1.Microphone unit: 4*1.5mm..
2.Directivity:omnidirectional.
3.S.P.L:-58
4.Impedance:
5.Frequancy response:30hz-16, 000hz..
6.Operating voltage:3.0v.


Blister and papercard