Interface type: USB Battery Capacity: 3600 mAh Frequency response range: 85Hz-20 KHz Output power: 10 W / 7.5 W / 5 W Input: 5 V / 2.0A 9 V / 1.8A Max Output: 5 V-9 V / 1.67A Max Signal to noise ratio: 90dB
Play time: 6 hours-12 hours Bluetooth protocol: 4.0 + EDR
Effective distance: 10 meters Functions: voice prompt, card, function call, wireless, mobile phone Connection method: 3.5mm, Bluetooth, TF card, usb Color: gun color + white Material: ABS Size: 278 * 115 * 87 mm package:
1 * Alpha speakers
1 * Neck Strap
1 * Micro-USB cable
1 * User manual Just above the package, other content, products not included Note: Photography may make the color slightly different actually. Allowable error is +/- 1-3 cm.