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Overview and Specifications:

Product Attribute
Cabinet Material : Plastic
Speaker Type : Portable
Communication : AUX,Bluetooth
Battery : Yes
Feature : Phone Function
Channels : 1
Power Source : Battery
Number of Loudspeaker Enclosure : 1
Audio Crossover : Full-Range
Built-in Microphone : Yes
Display Screen : No
Intelligent Personal Assistant : None
Support Apt-x : No
Remote Control : No
Model Number : MK-22
Playback Function : None
Material : Plastic
Support Memory Card : No
Support APP : No
Waterproof : No
Display Screen : No
Output Power : 5W
Frequency Range : 70Hz-20KHz
Voice Control : No
Wi-Fi Music : Other

Brand Name: for Fineblue
Model: MK22
Bluetooth version: V4.2
Bluetooth chip: AC6926A
Speaker type: Φ40mm/4 ohm 5W
Output power: 2 * 3W (TWS 3+3W)
Battery capacity: polymer battery 800ma / 3.7V
Transmission range: 10 meters (5M when TWS is interconnected)
Transmission frequency: 2.4GHz
Charging voltage: DC 5V1A/2A
Charging time: about 2 hours
Talk time : about 6 hours
Music time: about 4 hours
Standby time: about 20 hours
Mono / Stereo: Mono
Product weight: 165g
Bluetooth Profile: A2DP / HFP / HSP / AVRCP / AVDTP
Sensitivity: -85dbm
Signal to noise ratio: 80DB
Audio frequency range: 70‐18KHz
External sound input: Support 3.5mm audio head input
Bluetooth: Support 2.4G
Bluetooth with call: support
Charging interface: MICRO
TWS (speaker interconnection): Support two Bluetooth speakers to connect to each other Bluetooth
System prompt tone: English
Battery display: Support for Apple phones and most Android phones

Product size (D * H): about D60 * H77mm / 2.36 x 3.03 inch