BTR3K Feature：

– Incredible performance gains
– Now with balanced and SE output
– Robust, full-bodied sound High performance AK4377A DACs
– Independent dual crystal oscillators for accurate audio reproduction -Adapts to various kinds of wired headphones
– Qualcomm CSR8675 Flagship-level Bluetooth abilities
– Quick and convenient volume control
– Can be adjusted independently from phone volume

Parameters:

Volume Adjustment: Can be adjusted independently from phone volume
Bluetooth Profiles: A2DP (enhanced)，AVRCP，HFP，HSP

Bluetooth codec support: SBC/AAC/aptX/aptX LL/aptX HD/LDAC

Bluetooth Chip: CSR8675

DAC/Amplifier: AK4377A*2

USB DAC: Supported
Power/Pairing Button: Yes
Dedicated Pairing and Play Buttons: Yes
Dedicated Volume Buttons: Yes
Reception Range: Approx. 30 m (unobstructed)，LDAC (quality priority 4 m)

Format Indicator:
SBC：Blue、AAC：Cyan、aptX HD：Yellow
aptX/aptX LL：Purple、LDAC：White

Hands-free Calling with Microphone: Supported
Voice Assistant Activation: Supported
In-line Controls: Supported
NFC: Not supported
Audio Outputs: 2.5mm、3.5mm headphone jacks
USB Connector: Type-C
Battery: 330mAh
Battery Life: Approx. 11 hours
Charging Time: 1.5 hours
Check battery on iOS device: Supported (Android device support for functionality will vary)

Auto Standby if no audio signal: Supported
Dimensions: 58×25×11mm
Weight: 23.5g
Included in Package: Manual and warranty Card, USB Type-C cable, rear clip, lanyard