For the 0.78mm dual-pin version, the protruding length of the dual-pin is about 3.6mm.
Due to product design issues, a small number of earphones are not perfectly compatible with UTWS5, so you need to purchase an adapter.

Features:-

>Qualcomm’s latest QCC5141 Bluetooth chip.

>Independent AK4332 DAC chip.

>Independent Amplifier chip.

>Third-generation TWS mode for Low-Latency and Lower Lag.

>Bluetooth V5.2 connectivity.

>Hi-Res Bluetooth transmission(Up to 24-Bit/96kHz).

>AptX Adaptive, AptX, AAC, SBC wireless codec support.

>AptX Voice support for crystal clear voice transmission over calls.

>Precise volume adjustment with 32 volume levels.

>New advanced charging case for long battery life.

>Wireless charging support(Wireless charger not included in the package).

>IPX4 Water-resistant.

>FiiO Control and FiiO Music app support.

Qualcomm's Latest Bluetooth Chip:-

FiiO has featured the latest Qualcomm QCC5141 Bluetooth processor with the UTWS5. UTWS5 now supports high-resolution Bluetooth transmission with a better and stable Bluetooth connection. It also brings support for AptX voice that provides high-definition voice transmission suitable for calls and conferences.
Impressive Sound With Independent DAC Chip:-

FiiO has equipped the UTWS5 with AK4332 an independent DAC chip to provide high-resolution audio performance with lower distortion and high SNR ratings. You will experience your music with all-new clarity with a clean background and smooth detail reproduction with the UTWS5. Our high-resolution earphones go completely wireless with the UTWS5.
Independent Amplifier Chip:-

With an independent DAC Chip, the UTWS5 also features an independent AMP chip. The UTWS5 provides a powerful output thrust that brings our connected earphones to life. UTWS5 has a much powerful output thrust in comparison to the previous generation UTWS3.
Bluetooth V5.2 Connectivity With Hi-Res Audio Transmission Codec