The Kugou Rainbow Candy true wireless earphones, which are dazzling on the market this fall, are carefully crafted by Kugou Music, which has been deeply involved in the music field for many years and independently developed several music hardware, so that wireless earphones are also on the trend stage, creating a young and colorful life.

I have previously disassembled and analyzed the Kugou X5 true wireless Bluetooth headset for everyone .

Today’s Kugou Rainbow Candy True Wireless Headphones, the designer inspired by candy, the Kugou Rainbow Candy True Wireless Headphones brings rainbow candy colors into the wireless headset world, rich in colors and high value, making wireless headphones no longer It's just the single white of AirPods.

I love audio network disassembled the Kugou Rainbow Candy true wireless headset to see if the internal workmanship of this headset is charming in addition to its appearance.

1. Kugou Rainbow Candy True Wireless Headphones out of the box

The front of the package is very simple, the background is blue, and a white bar on the upper side divides the background, dividing the front area into three parts. The product text of the Kugou Rainbow Candy True Wireless Headphone is located in the white bar and close to the right frame. In short, it is two lines of two-color three-domain characters.

On the back of the package, product parameter information, manufacturing information, and Kugou music app QR code.

Packing list: earphones, white charging cable, user guide, white silicone earplugs.

It includes a USB-A to Micro-USB charging cable and two additional pairs of white silicone earplugs of different sizes.

A close-up of the top of the blue charging box, with KUGOU gravure printed in it.

A close-up of the front of the charging box, and the bottom of the opening groove is a charging indicator.

A close-up of the Micro-USB charging port on the back of the charging box.

Product information inside the top cover of the charging box, headset model: Kugou M51, charging box model: Kugou M51C, CMIIT ID: 2019DP6929, input: 5V?500mA, output: 5V?160mA, battery capacity: 3.7V, 500mA, 1.85Wh . Manufacturer: Guangzhou Yinchao Information Technology Co., Ltd. SN: 21D501937000943.

The appearance of the charging case when the lid is opened.

A close-up of the charging thimble in the earphone holder of the charging box.

I love audio network uses ChargerLAB POWER-Z KT001  to conduct wired charging test on Kugou Rainbow Candy true wireless earphones, charging voltage: 5.086V, charging current: 0.3866A.

Weight of charging box + earphones: 59.9g.

The weight of the charging case: 50.6g.

Weight of left and right earphones: 9.3g.

2. Disassembly of Kugou Rainbow Candy True Wireless Headphones

We first separate the headset compartment of the charging box.

A list of the internal components of the charging box, including the charging interface board, the charging box main board, and the lithium battery.

Close-up of the closed magnet inside the charging box, which is fixed in the slot by glue

A close-up of the LED light guide, which softens the LED.

A close-up of the black shaft holder of the charging box.

A close-up of the front of the charging interface board.

A close-up of the back of the charging interface board.

A close-up of the battery and the back of the motherboard.

A close-up of the battery and the front of the motherboard.

CEL Kinsale 902030 lithium polymer battery, capacity: 500mAh, 3.7V, produced on August 5, 2019.

A close-up of the lithium battery protection circuit of the charging box.

A close-up of the charging thimble on the mainboard of the charging box.

A close-up of the charging LED indicator on the main board of the charging box.

The silk screen W8SE boost IC boosts the built-in battery to charge the earphone.

Sinhmicro Shengsheng Micro SS809 microcontroller.

SS809 is an AD-type single-chip microcomputer with integrated charge and discharge management, with built-in rich interface functions, flexible configuration modes, and different low-power options. Mainly used in portable electronic devices that require charging and intelligent control, bringing streamlined peripheral costs, excellent performance and convenient development, such as Bluetooth headset charging boxes, LED light sets, handheld atomizers, personal care devices, electronic cigarettes , Aroma diffuser, aroma diffuser, electronic toys, etc.

According to my audio network, Edifier TWS1 true wireless Bluetooth headset , 1MORE Million Magic Stylish true wireless headset , Nubia nubia Pods TWS true wireless Bluetooth headset , EDIFIER LolliPods true wireless headset , LINNER listening ear NC100 true wireless active Noise-canceling headphones , EDIFIER HECATE GM6 and Ai Temingke E3 true wireless headphones all have built -in Shengsheng Microelectronics SS809 microcontroller.

The overall appearance of the headset at a glance.

The new headphones are affixed with a packaging sticker.

A close-up of the headset charging contacts.

Close-up of the microphone pickup hole of the headset call.

A close-up of the headphone LED indicator opening.

A close-up of the sound hole of the earphone, covered with silk screen.

Overview of the overall assembly structure of the earphone shell.

At a glance the internal structure of the headset, you can see the headset charging contact line small board, positioning magnet, and sound unit.

Headphone sound unit size: 6.1mm.

Overview of the internal structure of the headset.

A close-up of the inner wall of the earphone backboard. The golden disc in the middle is the touch area of the earphone. There is an LED soft pad next to it, and the outer ring is the earphone’s Bluetooth antenna.

A close-up of the microphone pickup hole inside the headset, covered with black silk screen.

A white plastic shell is embedded inside the earphone to fix the internal components.

We separate the battery and the motherboard fixed in the white plastic case.

A close-up of the black plastic shell slot of the silicon wheat on the side of the white plastic shell.

Headphone motherboard, headphone battery size and a dollar coin comparison.

541011 lithium polymer battery, 3.7V, 0.1665Wh.

The side view of the motherboard, the shrapnel in the middle is a touch shrapnel, and the shrapnel on the side is a Bluetooth antenna shrapnel.

A close-up of the headphone motherboard LED indicator.

A close-up of the left headset motherboard model 178 9PC call MEMS silicon microphone.

A close-up of the microphone hole reserved for the right earphone motherboard.

Silk screen 233DH D969 single touch detection IC.

Xysemi XB6366D integrated single-cell lithium-ion battery protection IC.

XB6366D data information.

Realtek RTL8763BFR Bluetooth audio SoC.

RTL8763B is REALTEK's first complete TWS true wireless Bluetooth headset integration solution, supports Bluetooth 5.0, supports HFP 1.7, HSP 1.2, A2DP 1.3, AVRDP 1.6, SPP 1.2, PDAP 1.0, and has a binaural call function. RTL8763B has a 32-bit ARM processor, a 24-bit DSP, a maximum operating frequency of 160MHz, and a built-in 8Mbits Flash memory.

It also has built-in lithium battery charging management, built-in battery protection devices such as overvoltage, overcurrent, and undervoltage protection. In terms of scalability, it supports three LED drivers, touch IC control, analog and digital microphone input, and supports dual microphones. In terms of noise reduction, it supports noise reduction function and ambient sound monitoring mode. It can be said to be a high-performance all-round TWS true wireless Bluetooth headset integrated solution.

Realtek RTL8763BF schematic diagram.

According to the dismantling report of my love audio network, Realtek has been recognized and adopted by many audio brand manufacturers. TWS audio products of NetEase, Xiaomi, ANKER, FIIL, Rapoo, and QCY have built-in Realtek chips.

Disassembly overview of Kugou Rainbow Candy True Wireless Headphones.

I love audio network summary

The Kugou Rainbow Candy true wireless earphone charging box has a square and round shape, which resembles the design of a pebbles fusion jewelry box; the earphones are designed with an in-ear design and are compact and simple. The internal connection part is reinforced with white glue, and the embedded structural parts are customized components, which fully consider the internal space design.

The charging box is equipped with Sinhmicro SS809 charge and discharge management IC to ensure the safety of charging and discharging of the charging box. The earphone end is equipped with Realtek RTL8763BFR Bluetooth chip, supports Bluetooth 5.0, built-in charging and discharging protection, strong scalability, balanced overall performance of the earphone, and wireless connection is also guaranteed.