EBS-308 Portable Rechargeable Bluetooth Speaker Wireless Music Subwoofer Support TF Card/U-Disk/AUX - Black

• ABS plastic shell + iron mesh material, fashionable appearance, sturdy and durable
• Built-in 1200mAh battery, long standby and use time
• Built-in clear microphone, it can answer calls conveniently
• Support TF card/U-disk reading to play music, support AUX
• Large volume speaker, with diaphragm for enhanced bass
• When charging, the red light of the speaker is always on, and the red light is off when fully charged

Specification: 

• Bluetooth chip: BLUETRUM
• Bluetooth version: V5.0+EDR
• Bluetooth protocol: RF5.0 BB5.0 LMP5.0 AVCTP1.4 GAVDP1.3 HFPV1.7 A2DPV1.3, AVRCPV1.6 SSP V1.2, etc
• Material: ABS plastic + iron mesh
• Output power: MAX 2*3W
• Response frequency: 2.4GHz-2.480GHz
• Speaker unit: dual speakers, 3W*2, Φ40 internal magnetic impedance 4Ω
• Signal-to-noise ratio: ≥80dB
• Distortion: ≤3%
• Sensitivity: -88dBm ±2dBm
• Transmission power: support CLASS1/CLASS2/CLASS3 maximum adjustable 6dBm
• Input voltage: DC5V
• Audio Type: Dual Channel
• Charging current: IN DC 5V 1000mA ±10mA 
• Working current: (Battery 7.4V 1KHZ 0dBm) Average value 1.2A±0.5A
• Shutdown current: none
• Temperature range: -25? to +65?
• Speaker battery: 1200mAh, battery model 18650 (with protection board) (Micro 5PIN charging interface)
• Transmission distance: ≥10 meters (barrier-free)
• Talk time: about 8 hours
• 60~70% volume listening time: about 9.5 hours
• 100% volume listening time: about 4.5 hours
• Standby time: about 7200 hours