... 2.System: 2.0track 3.in 10M control range 4.For: iphone,ipad,mobile phone 5.Material: wooden High grade wood ... Yellow pear, African Rosewood3. Bluetooth Speaker Wireless stereo4. Suit for: iphone,ipad ,mobile phone, computer, tablet PC bluetooth device5.System ... Range 10mFrequency Response 80Hz-20kHzLoudspeaker Output 4Ω 3WSignal to noise ratio 80dBPlaying time 4 hoursCharging time 2 hoursPower supply ...