Bluetooth version: CSR V4.1 a delay of two switch machine with vibration in English prompt
Bluetooth version: CSR V4.1 a delay of two switch machine with vibration in English prompt Audio frequency range 2.402GHZ ~ 2.480GHZ ISM Band Receiving sensitivity-80dbm
Wireless Transmitter Standard Channel 79channels of 1Mhz BW Connection point to point
Polymer lithium-ion battery 120 mA, full charge for 8 hours of continuous playback Charging time 1-2 hours Charging power supply PC USB 5V
Bluetooth program: CSR / Jianrong