- +100 7 % $1.40
- +300 9 % $1.36
- +500 11 % $1.33
- +1000 13 % $1.30
Description
Bluetooth version 4.2, compatible with all mobile phones and Bluetooth adapters on the market. Support USB sound card, drive-free, plug and play (normal lithium battery power supply)
The maximum working current is 5V2A. It is powered by a regulated power supply of 5V2A or above, and the sound quality is better!
The open transmission distance is about 15 meters, which supports automatic connection back to the already paired devices and automatically plays music.
Two 2-8 ohm, 3-10W speakers can be connected separately. It is recommended to use 4 ohm 5W and 4 ohm 10W speakers. The output is stereo.
This product has its own dual 5W power amplifier circuit, you must not connect another amplifier! The output of the two amplifiers can not be connected in parallel, or the negative poles can be connected together, otherwise the power amplifier chip will be damaged.
Features
Support USB sound card, free drive, plug and play (normal lithium battery power supply situation).
This product has dual 5W power amplifier circuit. It can not be used in addition to the power amplifier. The output of two amplifiers can not be connected in parallel or connected to the negative electrode, otherwise the power amplifier chip will be damaged.
There are two 2-8 European and 3-10W speakers respectively, and 3 European 5W and 4 European 10W horn are used. The output is stereo.
Maximum working current is 5V 2A, using 5V 2A or more voltage power supply, sound quality will be better.
It is suggested that a 3.7-5V lithium battery (the lithium battery needs a protective plate! It can charge a lithium battery with a USB rechargeable battery, and the USB port can not be used as a power supply port.) or a 5V adapter be used for power supply. It can not use voltage and current unstable power supply, such as dry battery, portable charger, multi-function transformer and so on.
When the Bluetooth board is installed, the antenna should not be close to the metal parts so as not to affect the transmission distance.