-Model number: A770BL
– Bluetooth version: 5.0
– Battery capacity: 250mAh
– Standby time: up to 25h
– Talking time: up to 10h
– Playing time: up to 13h
– Charging time: 1h
– Transmission distance: up to 10m
– Frequency response: 20-20kHz
– Connectivity: Bluetooth, 3,5mm aux-in

Product name: ws1816 wireless LED bluetooth microphone
Product size: 27 x 8 x 8cm/10.63 x 3.15 x 3.15in
Net weight: 466g
Material: ABS shell, Aluminum alloy handle, steel mesh cover
Input voltage: 5V
Power supply: USB power supply
Battery capacity: 1800mA, 18650 lithium battery
Quantity of speakers: 2
Connection mode: mobile phone Bluetooth Applicable places: family, KTV, outdoor, car etc.

Brand: Awei
Model: Y333
Bluetooth-compatible chip: Zhongke Lanxun
Bluetooth-compatible version: 5.0
Bluetooth-compatible frequency: 2.4GHz
Battery capacity: 1800mA/3.7V
Bluetooth-compatible transmission distance:> 10m
Bluetooth-compatible transmitting frequency: Class 2 (2.5mW)
Bluetooth-compatible antenna: built-in
Bluetooth-compatible protocol: A2DP/AVRCP/HFP/HSP
Rated power: 5W*2
Distortion degree: THD＜1%
Frequency response range: 60Hz~16kHz
Signal to noise ratio: ≥90
FM frequency bandwidth range: N
FM antenna: N
Battery life: >3.5H (100% volume)
Charging time: <3H
Working voltage: DC 3.3V-4.2V
Charging voltage: DC 5V±0.2V
Charging current: ≥1A
Charging interface: Micro_USB
Product size: 460mm*78mm*74.5mm(L*W*H)
Product weight: 980g

• Type: Plug and play
• Port: TYPE-C
• interface Cable length: 2m
• Sensitivity: -45+3dB
• Frequency response: 50HZ-16000HZ
• Compatible: Mobile phone/ camera/ computer/ tablet

• 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