JR-CB2 2-in-1 Wireless Transmitter/Receiver-Dark Gray

Name: 2-in-1 Wireless Transmitter/Receiver Model: JR-CB2 BT version: V5.3 Audio decoding: SBC Supported protocols: HSP, HFP, A2DP, AVRCP Supported modes: receiving, transmitting, BT, AUX, TF card Transmission range: ≤12m Frequency response range: 20Hz-20kHz Mic sensitivity: -38±2dB TX mode music time: about 6.5h (60% volume) TX mode calling time: about 5.5h (60% volume) RX mode music time: about 14h (60% volume) RX mode calling time: about 12h (60% volume) Standby time (connected): about 24h Battery capacity: 300mAh Charging time: about 2h Charging port: Type-C Charging input: 5V⎓1A Product size: Product material: ABS+PC Net weight: g