MoonDrop Space Travel earbuds are equipped with a 13mm titanium dome composite diaphragm dynamic driver, which brings excellent high-frequency extension and details, fluffy bass and excellent low distortion. The frequency response curve conforms to the characteristics of VDSF Target Response and can better restore the natural sound. At the same time, three bass modes are preset: monitoring, standard, and atmosphere, which can be switched according to personal preference.
The MoonDrop Space Travel supports ANC active noise cancellation function, with a maximum noise cancellation depth of 35dB and a noise cancellation bandwidth of 3kHz. It supports transparency mode and is optimized for the vocal frequency band, which can clearly capture surrounding conversations without being disturbed by redundant high and low ambient noise. It also supports game mode and provides 55ms low latency. The single battery life is about 4 hours, and the total battery life is about 12 hours.
We have previously dismantled MoonDrop products including: MoonDrop ALICE and MoonDrop NEKOCAKE. This time, let’s take a look at the detailed teardown report of MoonDrop Space Travel.
01/ MoonDrop Space Travel Charging Case Teardown
Remove the bottom cover of the charging case. The motherboard is fixed with screws inside the cavity, and a battery is located under the motherboard.
Remove the screws and take out the motherboard and battery.
The circuit on the side of the charging case motherboard.
The circuit on the other side of the charging case motherboard.
INJOINIC IP5516 charging case management SoC integrates MCU, boost converter, lithium battery charging management, battery power indicator, 5V one-way communication, etc. – providing a complete power solution for TWS bluetooth headset charging case.
IP5516 supports 300mA synchronous boost output, 500mA linear charging, adjustable input current and supports adaptive adjustment. Supports high-voltage platform batteries and built-in ADC to calculate battery power. Supports 1-4 LEDs or 5-6pin 188 digital tube power display. The high integration and rich functions of IP5516 require only a few peripheral components for application, effectively reducing the size of the overall solution and reducing the BOM cost.
2.2μF power inductor works with the power management chip.
Silk screen 02AOX IC.
Two LED indicators of different colors are used to feedback the working status.
Charging case Pogo Pin connector for charging earbuds.
Charging case built-in lithium battery model: ST 801730, nominal voltage: 3.7V, rated capacity: 380mAh 1.41Wh, from ST.
Tear off the outer insulation protective film and the circuit on the side of the battery protection board.
Silk screen DW01D lithium battery protection IC is responsible for battery overcharge, overdischarge, and overcurrent protection.
Silk screen 05 MOS tube to work with lithium battery protection.
02/ MoonDrop Space Travel Earbuds Teardown
Open the earbud head cavity. Inside the front cavity is the speaker.
There is a battery inside the back cavity, and magnets are fixed on the cavity wall for adsorption and fixation with the charging case.
Remove the speaker and battery.
The front of the speaker uses a titanium dome composite diaphragm, which is protected by a metal cover.
There is a tuning hole on the back edge of the speaker, which is protected by a wire mesh.
After actual measurement, the speaker diameter is approximately 13mm.
The earbud has a built-in soft-pack lithium battery, model: ST 451012, nominal voltage: 3.7V, rated energy: 0.13Wh, from ST.
Remove the tail plug and pull out the motherboard inside the earbud stem.
The bottom structure of the rear cavity and the inner side of the earbud stem are covered with conductive cloth for touch detection.
The circuit on one side of the earbud motherboard.
The circuit on the other side of the earbud motherboard.
Laser-engraved MF33 D116 MEMS microphone is used for voice calls and noise reduction function.
The ceramic bluetooth antenna.
Bluetrum BT8922E bluetooth audio SoC uses 40nm ULP process and has a built-in 32-bit high-performance RISC-V CPU. Supports DSP instructions and neural network accelerator. Built-in 8MB Flash storage unit. Built-in high-performance bluetooth radio frequency circuit, compliant with Bluetooth 5.4 and BLE specifications. The wireless receiving sensitivity reaches -94dBm, and the maximum transmit power is +9dBm, adapting to different product forms and antenna structures.
BT8922E supports Sound+ 2-MIC Beamforming ENC call algorithm to provide users with a clear call experience. Supports high-precision ANC controller, optimizes adaptability to special boundary conditions, and prevents system instability caused by squeeze whistling and sudden loud noise. Integrated voltage reduction and lithium battery charging functions enable a streamlined headphone design.
Pogo Pin connector for connecting conductive cloth, and a lithium battery protection IC for which detailed information cannot be obtained.
Laser carved YL240 crystal oscillator is used to provide the clock.
Silk screen 7212F touch detection IC for touch control function.
Metal connector for charging case.
All components of MoonDrop Space Travel true wireless noise cancelling earphones.
03/ Summary
The MoonDrop Space Travel charging case adopts an open charging bin structure and transparent element design, making it lightweight and portable. The earbuds adopt a handle-shaped in-ear design.
The charging case has a built-in 380mAh lithium battery and is equipped with a circuit protection board responsible for overcharge, overdischarge, and overcurrent protection. The mainboard uses INJOINIC IP5516 charging case management SoC to be responsible for the charge and discharge management of the built-in battery. It also integrates battery power indicator and 5V one-way communication function to provide a complete power solution for the TWS bluetooth headset charging case.
The earbud has a built-in 13mm dynamic driver and 0.1·3Wh lithium battery. The motherboard uses Bluetrum BT8922E bluetooth audio SoC, which complies with Bluetooth 5.4 and BLE specifications. Supports Sound+ 2-MIC Beamforming ENC call algorithm. Supports high-precision ANC controller and integrates voltage reduction and lithium battery charging functions. Equipped with a MEMS microphone for voice calls and noise cancellation function.
PS: Translated from 52audio
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