Item Type: Amplifier Board Model: HF69B Supply Voltage: 5VDC or 3.7V lithium battery Applicable Speaker Impedance: 4 ohms, 6 ohms, 8 ohms Charging Interface: When using a lithium battery, the charging interface can be charged with a 5 volt power supply or a mobile phone charger to charge a single lithium battery.
Plug and Play device no software installation needed Easy and portable Works and all major operating systems Supports 5.1 Surround and 3D sound No external power supply needed Boost the signals for Headsets
Product: Adafruit Electret Microphone Amplifier ?? MAX4466 with Adjustable Gain Adjustable gain You can set the gain from 25x to 125x Excellent power supply noise rejection
Excellent durability and coexistence Guarantee the stability of Bluetooth transmission through multiple technologies Intuitive LED indication Bluetooth 4.2 Version Wireless transmission distance ?? 10 meters Adopt the latest Bluetooth 4.2 protocol, backward compatible with other versions of Bluetooth protocol
Comes with IR Remote Control Stereo Digital Audio Output Can be used as an audio receiver Support USB/TF Card Slot/Bluetooth/FM/AUX switching, also supports folder selection and playback Stereo Bluetooth with a call can also receive hands-free calls
Mini design, portable and easy to use. It is the audio-style connectors that you see on some phones, MP3 players, and development boards. Dimensions: 18 x 12 x 6(L x W x H) mm Weight: 2 gm
The board can be connected to two mobile phones. It comes with the call function and the default volume of the largest. Can be used for many applications like Bluetooth Headset
Sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48 24 -bit DAC output, support for dynamic range 90dB , SNR support 85dB Fully supports FAT16 , FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NORFLASH A variety of control modes, I/O control mode, serial mode,?AD button?control mode
Single-Supply Operation (2.5V to 5.5V) 3.2W Output Power into 4I at 5V 2.4mA Quiescent Current 92% Efficiency (RL = 8I, POUT = 1W) 25?VRMS Output Noise (AV = 15dB)
Gain range: 1 to 1000 Noise: 35 nV/??Hz RTI noise at 1 kHz Single- or dual-supply instrumentation amplifier Low power, 550 μA maximum supply current 20 μs settling time to 0.01% (G = 10)
Onboard LM386 Chip. 200 multiplier benefits circuit design. On-board speaker wiring Block. On-board 10K variable resistor, you can adjust the volume of the enlarged. Onboard power indicator.
Supply Voltage Operation: +2.4V to +5.5V. Versions with 5nA Complete Shutdown Available only (MAX4467/MAX4468). Excellent Power-Supply Rejection Ratio: 112dB. Excellent Common-Mode Rejection Ratio: 126dB. High AVOL: 125dB (RL = 100k??).
Support MP3 format, playing power on automatically. When mp3 is played the red LED flashes. Support U disk (test 32G), TF Card (test 16G) play mode;?power on default. Buttons can be adjusted up and down to control songs, volume up and down, pause or play, mode switching. Press menu button enter the single / all song play mode.
Module chip using PCF8951 Module supports external voltage input of the 4-way acquisition (voltage input range of 0-5v) The module integrated photoresistor by AD collection precise value of the ambient light intensity Module integrated thermistor by the precise value of the ambient temperature of the AD acquisition Module integrated 1 channel 0-5V voltage input acquisition (the blue potentiometer to adjust…
Input: 5V(DC) Operating current (without signal output state): less than 15 mA Operating current (with signal output state): less than 40 mA Chip: KT403A Chip LDO output voltage: 3.3 V Chip output current: 100 mA(at Max.)
Working Voltage: 3.??V Working Current (@5V, 25??) Standby: 25-30mA Recording: 29-35mA Playing: 110-150mA Working Current (@3.3V, 25??) Standby: 23-25mA Recording: 25-30mA Playing: 70-150mA Working Temperature: 0~85?? Size: 40x20mm Weight: 31.5g
Operating voltage: 6 to 12V DC Onboard TDA2030A Audio amplifier IC Mono channel 18W Power amplifier circuit design Onboard horn socket 10 k adjustable resistance to adjust the volume of the amplification Onboard power indicator light Chip has lead to the main pin, can directly input the audio signal
Dual-Channel Stereo Output Run-on 10V to 26V power Supply PowerSSO -36 EPU Package Much higher efficiency in terms of cost and performance than competitors? IC?s
25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω Wide-range single-supply operation (8 ?? 26 V) High efficiency (η = 90%) Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB Differential inputs minimize common-mode noise Standby and mute features Short-circuit protection
Directly plug antenna interface. I2C bus communication. Multi-capacitor combined filter. Blue LED power indicator. High sensitivity(low noise RF input amplifier). High power auto gains control AGC circuit.
Working mode: Class D Quiescent current: 60mA Work efficiency: 90% Rated output power: 100W + 2 x 50W Frequency response: 20Hz to 20KHz Operating voltage: DC18V to DC24V Maximum output current: 3A
Chip type: TPA3116D2 Chip protection: overvoltage under-voltage superheat DC detection short circuit Supply voltage: DC 12V to 24V Output power: 80W X 2 Power efficiency > 90% Number of channels: double channel output Module Size: 60 x 32 x 14mm
Original TPA3116D2 core technology Easy Plug and Play Operation Dynamic operating Voltage Range: 12 to 24V High fidelity 120W out at both Channel (60W per Channel)
One male USB plug Two 3.5mm (3-position) Female Jacks (1 for the mic, 1 for headset) Specifically for mic-capable headphones Convenient tangle-free flat cable design Allows the use of older audio accessories with newer computers Can be used with any device which uses USB portable devices
SPI interface, the control signal lines are led out A headphone and stereo output Onboard Microphone for recording A line-in input interface Separate 3.5 mm Jack for MIC and Speaker Onboard Power Indicator 3.3V and 2.8V of LDO chip AMS-1117 on board provides up to 800mA current
Original TPA3116D2 core technology Easy Plug and Play Operation Onboard Bluetooth Dynamic operating Voltage Range: 12 to 24V High fidelity Dual 100W output.
Dual-channel stereo, high output power (50W+50W power @ 12V). Double panel wiring solves crosstalk. Super mini design allows it to be easily placed in a variety of digital products. Filterless, Low Quiescent Current and Low EMI and Low Noise. Short Circuit Protection and Thermal Shutdown
Sam class D digital amplifier module Two-channel stereo. Power? supply voltage 8v- 24v The maximum dynamic current:4 A Static current < 40mA Input signal:500 mV IMpedance 4-8 Europe Rated Power 20W*2 PCB Size 38*20*2.8MM PIN Width :2.54MMX12, Length 40MM
