Small Speakers:
<br />Bluetooth support effective distance of 30 meters
<br />Call support answer / hang up
<br />Display does not support
<br />Radio support 87MHZ-108MHZ
<br />Automatic deposit platform support
<br />Radio antenna external USB or headphone antenna
<br />Power-off memory supports volume song memory
<br />Audio format MP3
<br />TF card supports up to 8GB
<br />U disk support up to 8GB
<br />Audio input support miniUSB audio input
<br />Audio output support 3.5MM headphone output
<br />Operating voltage DC 3.7V-4.2V
<br />speaker
<br />Outer magnetic Φ40 iron frame 40 with a side of 54mm
<br />Power 4Ω3W
<br />Response frequency 20Hz-20KHz
<br />Play time 50 minutes
<br />Impulse time 180 minutes
<br />Surge voltage limit voltage DC 5V
<br />Impulse current DC 500MA
<br />Finished product specifications
<br />With packaging size 62 * 62 * 78mm
<br />Bare captain width 61 * 61 * 62mm
<br />Mini Size:180*85mm
<br />Big Size: 220*100mm
<br />(SIZE 2)Packing list: 
<br />1 x Bluetooth speaker 
<br />1 x USB line 
<br />1 x Audio line 
<br />1 x English instruction 
<br />1 x Shoulder strap
<br />(SIZE 2)Features:
<br />1. 10000 MAH super battery capacity, 15 hours music playback, enjoy music anytime, anywhere
<br />2. Support TF card function, Max 32GB
<br />3. Transmission distance up to 10M
<br />4. Support micro USB, 3.5MM AUX,TF card, USB2.0 ports
<br />5. Low power consumption. Loudspeaker Output 40W
<br />6. Support voice calls function 
<br />7. Excellent for outdoor sport and exercise and travel and so on 
<br />
<br />(SIZE 1)Package includes:
<br />1x Bluetooth speaker
<br />1x USB power cable
<br />
<br />(SIZE 1)Specifications:
<br />Color: White, Black, Yellow, Pink, Blue, Green (optional)
<br />
<br />(SIZE 2)Description:
<br />Bluetooth version: V4.1
<br />Bluetooth Name: XTREME
<br />Battery capacity: 10000mAh (built in)
<br />Endurance time: 15 hours
<br />Charging time: 3--5 hours
<br />Number of speakers: 2
<br />Speaker: 20W * 2
<br />Sound track: 2.0
<br />Frequency range: 2.4GHZ
<br />Input sensitivity: 400mV
<br />Wireless transmission distance: 10 meters
<br />The degree of separation: ¡Ý90dB
<br />Frequency response: 70~20KHz (+-3dB)
<br />Signal-to-noise ratio: ¡Ý 80dB
<br />Playback formats: WAV, MP3, WMA
<br />TF maximum support: 32G
<br />Mode of operation: press key
<br />USB line length: 50CM
<br />Input voltage: DC 5V 2A
<br />Certificate type: CE
<br />Interface type: micro USB / AUX / TF card socket / 2.0 USB 
<br />Color: brown green, green white grid(optional)
<br />Material: Rubber + woven fabric
<br />Size: length 21.5CM, width 9.7CM, height 9.4CM