BTI-020V Mini Bluetooth Adapter 2 in 1 Audio Transmitter and Receiver 250mAH 12 hours working time

Specification Model: BTI-020V Bluetooth version: V4.1 Bluetooth chip: CSR BC8670 Frequency Range: 2.402GHz-2.480GHz Receiver mode working time: About 12 hours Transmitter mode working time: About 13 hours Battery type: 250mAH rechargeable lithium battery Charging time: About 2 hours Charging supply: 5VDC,100-240V AC adapter, =300MA Bluetooth protocol: TX: A2DP RX: A2DP, AVRCP One with two functions (transmitter mode): Support (a transmitter is connected to two Bluetooth speakers or headphones at the same time, and a CODEC is used at the same time) One for two function (receiver mode): Support (connect two mobile phones) Supported Bluetooth headsets, Bluetooth receivers, Bluetooth speakers and other device keys: 0000, 1111, 1234, 8888 CODEC: TX: aptXTMLow Latency, aptXTM, SBC; RX: aptXTMLow Latency, aptXTM, SBC; AAC Battery specifications: 200mAH rechargeable lithium battery Operating temperature: -10 degree—55 degree Net weight: About 18g size: 43.8*43.8*12.4mm packing list: 1 * BTI-020V Bluetooth adapter 1 * 3.5mm audio cable 1 * Micro USB charging cable 1 * user manual