The BTR11 is the first in its price range to support LDAC codec, truly bringing high-quality Bluetooth audio to affordable prices. It is equipped with the new BES2700 Bluetooth chip with support for Bluetooth 5.3, a dual-core process for smooth performance, and a dual-core NPU for enhanced sound processing. High-performance independent headphone amp Inside the BTR11 is a high-performance independent headphone amplifier with ultra-low resistance and capable of outputting up to 45mW (16Ω), enough to drive many earphones well. Enjoy high-quality sound comparable to that of a wired connection! Low impedance headphone driving power: 30mW (32Ω), 45mW (16Ω) Bluetooth codec indicator The red and blue dual-colour light intuitively and cleverly indicates the device's status through colour combinations, whether powering on or off, pairing, charging, low on power or Bluetooth codec information. Built-in microphone – Supports voice calls The built-in high-sensitivity omnidirectional microphone is paired with support for call noise reduction, for crisp and clear calls. Ultra-low power consumption – 15 hours of battery life Inside the BTR11 is a rechargeable battery, with enough capacity to let you listen for up to 15 hours. When the battery level is low, recharge the BTR11 back up to 90% in just one hour. Charging is conveniently done via a Type-C connector. Elegant, light and compact design BTR11 features a sleek polished finish, crafted from transparent material with multiple silk-screen prints. With a luxurious feel and a stylish black or white design. The BTR11 weighs only 12.5g and is about 5.5cm long – approximately the length of a finger. You can choose to wear the BTR11 either using the back clip or hanging it on a lanyard, making it easy to carry around with you wherever you go. Supports pairing to 2 devices simultaneously The BTR11 remembers being connected to 2 different Bluetooth devices, eliminating the need to always re-pair for more convenience. Note: When the BTR11 is turned off and then on again, the second device needs to be manually connected. One-touch reconnect – Seamless listening If your Bluetooth headphones get disconnected, simply press the multi-function button to reconnect, letting you listen to music and answer calls without skipping a beat.