Mini Wireless Bluetooth Earphone Music 4.1 10m Earbud Stereo
($9.29 + Free Shipping)

1.Bluetooth:V4.1+EDR
2.Continuous working time:about:3-5hours
3.Standby time:about 120hours
4.Communication distance:10meter
5.Size:15*26*13mm
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       Wireless Bluetooth Precise Receive AUX Stereo Module
(From $6.49 + Free Shipping)

1.Bluetooth: 3-20 Meters(According to the distance and barrier and transmitting power)
2.Application: support HF calls, bluetooth A2DP stereo
3.Frequency: 2.4Hz
4.Media Port: USB port and TF port multimedia play
5.Audio Input: 3.5mm/2.0 frequency
6.Power Supply: 5V
7.Connecting Port: 3.5mm AUX/Micro USB
How to use it
 

5V 2x3W Mini Stereo USB Supply Precise 8403 Line Control Amplifier Board
($1.75 + Free Shipping)

1. The PCB can be adapted to a computer USB power supply or 3.7V lithium battery; the limit voltage is 5.5V; check the installation before usage.
2. The amplifier board can be applied to 3W, 4Ω-8Ω load, negative poles of the two speakers cannot be connected together.
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                          CC2540 Bluetooth Module Bluetooth Precise 4.0BLE Slave Passthrough Mode for Arduino/51/STM32
($6.99 + Free Shipping)

1.No experience on bluetooth protocol or RF applications is required;
2.Support communications among iphone4S, ipad3, ipad4 and newer types;
3.Support communications among Android phones, which have bluetooth function and system higher than Android 4.3
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iBeacon Module Bluetooth 4.0 BLE Near-Field Positioning Sensor For Apple Andorid
($12.59 + Free Shipping)

Application:
Support firmware upgrade
Support payment interface
Support broadcast read the battery level, temprature, humidity acquisition without connecting module
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                          PCM2704 Mini USB Sound Card DAC Connect Computer Precise without Dirver
($9.99 + Free Shipping)

Chip: PCM2704 high-performance audio USB DAC chip
USB Interface: Insert slice USB; can be plugged directly into a computer by USB, realise the external audio playback
Output Interface: 3.5 stereo headphone jack; analog signal output can directly drive headphones or work for the next stage amplifier
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RTL8188ETV 150M 5V Precise USB Interface Wireless WiFi Module
($8.99 + Free Shipping)

1.The W2_E module is a low-power 150M USB interface wireless network card, compatible with IEEE802.11b / g / n standards.
2.It can be connected to and communicate with other wireless devices complying with this standard.
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