Track system:  StereoDual Sound Track
Battery capacity: 2200mAh
Driver units: 43+6Ω8W*2pcs+4Ω15w*1pcs
Impedance: 6Ω,4Ω
Rated power: 31w
Driver power: 8W*2/15w*1
Color: Black
Charging time: 4h
Talk time: 12h
Music play time: 12h
Bluetooth Protocol: A2DP / AVRCP / HFP / HSP
Frequency range:100Hz-20KHz
Input voltage: DC5V-500mA
Bluetooth frequency: 2.4GHz-2.480GHz
Optimal talking distance: 〈1M
Transmission Distance:  10Mbarrier-free space)
voice prompt:   Yes
multipoint connection:   Yes
Instruction:  Chinese & English

1, Input voltage: DC 5V charging/discharging
2, Audio input means: Ø3.5mm AUX, Micro-SD (TF) card, U flash disk, Bluetooth signal.
3, LED screen: It can display inputted audio source, FM broadcast, time setting, alarm setting, etc.
4, Power: 5W*2 for audio output / 5W as wireless charge / 10W as power bank.
5, Load of Speaker: 4Ω 5W*2.
6, Battery Capacity: 8000mAh/3.7V
7, Dual alarm setting
8, Product Size: L146*W146*H82.5mm

• Product name: wired earphone
• Material: TPE, Metal
• Interface type: 3.5mm
• Wearing method: in-ear
• Speaker diameter: 10mm
• Speaker resistance: 16ohm±15%
• Microphone sensitivity: 92dB±3dB
• Cable Length: 1.2m/47.24″

• Bluetooth Version: V5.0
• Play Modes: Bluetooth, AUX, USB Flash Disk
• Drive Units: 58mm 40
• Rated Output Power: 25W x2
• SNR: >90dB
• THD: <10%
• Frequency Response Range: 60Hz-20KHz
• Transmission Distance of Bluetooth: >10m