Product parameters:
Name: Bluetooth Speaker
Brand: VIVIS, OEM
Color: silver, gold, black
Version: 3.0
Chip: RDA
Bluetooth specification: Bluethooth V3.0 + EDR
Valid Invalid distance: ≤10 m
Bluetooth protocol: HFP HSP A2DP AVRCP
Call Best distance: <1 m
Frequency range: 2.4GHz-2.480GHz
Audio SNR: 75: dB
Transmitting power: 4dB
USB charging voltage: DC 5V
Receiving sensitivity: -80dBm
Built-in lithium battery: 300mah / 3.7v
Output power: 3W
Size: Φ50mm
Playing time: 4 hours
Product Weight: 70g
Portable design, it can be used for mobile phones, laptops, MP3 / MP4 / MP5, Bluetooth devices