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See how Telink’s multi-protocol wireless SoCs provide gamers with the ultimate VR experience through Soundcore VR P10 earbuds.

In today’s earphone and headphone market, consumers are looking for a highly convenient user experience. True Wireless Stereo (TWS) earbuds have become a popular audio accessory offering wireless on-the-go listening. With the growing popularity of the Metaverse, there has also been a rapid increase in VR/AR products. TWS earbuds can complement these products through wireless connectivity to achieve a more immersive and entertaining video gaming experience.

Soundcore VR P10, recently launched by Soundcore with Meta certification, is the first true wireless earbuds product designed specifically for VR, supporting 2.4GHz propietary and Bluetooth® dual-mode wireless connections. 52Audio recently disassembled the earbuds and found that it uses Telink Semiconductor’s TLSR9517B and TLSR9516A SoCs, which achieve an ultra-low latency wireless transmission of less than 30ms.

The overall design of the Soundcore VR P10 true wireless VR earbuds is innovative and impressive. Paired with colorful LED indicators, it offers the look and feel of futuristic technology. Compared to traditional TWS earbuds, Soundcore VR P10 facilitates 2.4GHz wireless connections, providing an ultra-low latency of 30ms to meet VR product applications. The product also comes with a compact charger designed to match the small, portable characteristics of TWS earbuds.

Soundcore VR P10 supports two concurrent audio links over both 2.4GHz proprietary protocol and Bluetooth, enabling seamless switching between the two connections. Moreover, this product is compatible with up to four adapters, allowing convenient pairing with different devices. The earbuds use an 11mm dynamic unit and support BassUp technology and the LC3 codec to provide high-quality wireless audio. It also has a single battery life of six hours and a total battery life of 24 hours when used with the charger.

The Soundcore VR P10 true wireless VR earbuds adapter uses a male USB Type-C interface, which is compatible with current mainstream VR devices as well as mobile phones, laptops, and tablets. A female USB Type-C interface also allows the VR earbuds to be charged while in use. The adapter uses Telink’s TLSR9517B multi-protocol wireless SoC to achieve wireless connectivity over a proprietary protocol in the 2.4GHz RF band.

Telink’s TLSR9517B multi-standard wireless SoC supports standard industry specifications, including Bluetooth 5.2, Basic Data Rate (BR), Enhanced Data Rate (EDR), Bluetooth LE, and Bluetooth LE Mesh. TLSR9517B combines the features and functionality required for high-quality wireless audio devices into a single SoC, as demonstrated by its performance in the adapter.

TLSR9517B integrates a powerful 32-bit RISC-V MCU, DSP, 2.4GHz ISM radio, 256KB SRAM, 1MB flash memory, stereo audio codec, AUX ADC, analog and digital microphone input, PWM, flexible IO interface, and other peripheral modules required for advanced audio applications. TLSR9517B also includes a multi-level power management design for ultra-low power operations, making it an ideal choice for wearable and low energy applications.

Detailed diagram of Telink Semiconductor’s TLSR9517B multi-protocol wireless SoC.

The Soundcore VR P10 earbuds come with a 63mAh high-capacity battery, Winsemi WSDF13F2N2H lithium-ion battery protection IC, and Thinkplus Semiconductor’s SY5501 power management chip. The main control chip of the earbuds is Telink’s TLSR9516A multi-protocol wireless SoC, which works with the TLSR9517B chip of the adapter to achieve a proprietary ultra-low latency wireless transmission of 30ms. Moreover, the chip supports Bluetooth Classic Audio and Bluetooth LE Audio, allowing it to be connected with other standard Bluetooth audio sources, just like regular TWS earbuds.

The Telink TLSR9516A multi-protocol wireless SoC inside the earbuds supports Bluetooth 5.2, Basic Data Rate (BR), Enhanced Data Rate (EDR), Bluetooth LE, and Bluetooth LE Mesh standards. It also integrates the requirements for high-quality wireless audio devices on a single chip.

TLSR9516A integrates a powerful 32-bit RISC-V MCU, DSP, 2.4GHz ISM radio, 256 KB SRAM 2MB flash memory, mono audio codec, AUX ADC, analog and digital microphone input, PWM, flexible IO interface, and other peripheral modules required for advanced audio applications. It also includes a multi-level power management design, allowing ultra-low power operation. TLSR9516A can also run two protocols simultaneously.

52Audio Summary

Although TWS earbuds provide convenient use via wireless connectivity, it still faces the challenge of noticeable sound delay. Audio product manufacturers are actively looking for solutions to reduce latency, such as dual-end optimization of earbuds and mobile phones, low-latency game modes that compromise sound quality, and proprietary wireless connectivity using adapters like the Soundcore VR P10 true wireless VR earbuds.

Telink Semiconductor is a chip design company dedicated to developing high-performance and low-power wireless IoT SoCs. Its products are compatible with Bluetooth Low Energy, Zigbee, 6LoWPAN/Thread, Apple HomeKit, low-power 2.4 GHz proprietary protocols, and more. The TLSR9517B and TLSR9516A SoCs implemented in the Soundcore VR P10 earbuds provide an ultra-low latency connection, along with integrated high-quality wireless audio functions, offering a more immersive VR gaming experience.

Note: This article was originally published on 52Audio. Visit Telink’s wiki to learn more about our development tools, or ask us a question through our Technical Forum or by contacting us directly today.