Features: Versatile & Modular: The biggest feature that makes the TRN BT30 stand out is its ultimate versatility.  The pair has swappable connector options allowing the users to switch between MMCX/0.78mm 2-pin/0.75mm 2-pin connector as per their requirements.  Please note that only one pair of connectors will be included in the package, the other two have to be bought separately. Advanced QCC QCC3040 Bluetooth Chip For Smooth Wireless Connection:  TRN BT30 features latest QCC3040 Bluetooth processor chip that provides the latest Bluetooth V5.2 connectivity with high-resolution Apt wireless transmission codec support. The latest Bluetooth V5.2 connection is more stable, and faster than the Bluetooth V5.0 connection. Enjoy seamless wireless connection with low signal delay and lag with the TRN BT30.  Independent Amplifier Architecture: TRN has designed the BT30 TWS adapters with an independent amp architecture. It produces enough juice to drive demanding sets with ease and make them sound their best. They have an output power rating of 42mWat16Ω.  QCC CVC 8.0 Microphone: TRN BT30 has a microphone that features built-in QCC CVC 8.0 noise cancellation technology. It effectively reduces ambient background noises when on the call and transmits your voice with great clarity.  Enjoy Music Full Day With Long Battery Life:  You simply don’t have to worry about the battery draining out quickly with the TRN BT30. The pair has a super long battery life of up to 6.5 hours on a single charge for the earpieces. With the charging case, the pair can play music non-stop for up to 20 hours straight.     Specifications: Bluetooth Format: V5.2;  Effective signal range: Up to 15m;  Type-C charging socket;  Earpiece battery capacity: 80mAh(each earpiece);  Charging case battery capacity: 700mAh;  Playback time: up to 6.5 hours on a single charge, up to 20 hours with charging case;  Charging time(earphones):1.5-2H;  Charging time(charging case):2.5-3H;     Package Included: 1 pair * Bluetooth Module;  1 * Charging Case;  1 * Type-C Charging Cable;  1 * Manual